General

I'm surprised this topic is still alive.

[url=http://www.youtube.com/watch?v=jUdOmr3GwnE]Yu-Gi-Oh! GX - Sad Duel[/url]
[url=https://www.youtube.com/watch?v=MKfAXy5jwB8]Gundam 00 - Power[/url]
[url=https://www.youtube.com/watch?v=sCpexY3it2I]Prince of Tennis - Honki Moodo[/url]

[url=https://www.youtube.com/watch?v=t2tGEiYU9KU]Code Geass: Madder Sky[/url]
[url=https://www.youtube.com/watch?v=sZ0LxRVgcMg]Casshern Sins: Roamer[/url]
[url=https://www.youtube.com/watch?v=nunQbU3FHqg]Darker than Black: Kuro no Keiyakusha: Super Kuro (Super Black)[/url]

[url=https://www.youtube.com/watch?v=iw0Y3jsy6Bs&noredirect=1]Kuroko no Basuke - The Zone[/url] <3

[url=https://www.youtube.com/watch?v=c5Ka0WFqftA]Kill La Kill - Uzu Sanageyama Theme[/url]
Actually there are a lot of good OSTs in here but he's one of my favs ;w;

I like all Mushishi OSTs.
[url=https://www.youtube.com/watch?v=4J7K3yacig4]One Piece Very Strongest[/url]

wait, it doesn't have to be from animu? in that case
*was going to post soundcloud, but basil filter is being 'tarded as usual*

[url=http://www.youtube.com/watch?v=cx8lhSh454U]Planetarian: The Rain and the Robot[/url]
[url=http://www.youtube.com/watch?v=Smcf3jWvf20]Split Theory: Mienai Tabiji ~a final state~[/url]

[url=http://www.youtube.com/watch?v=03SbEfBcpLc]Gundam Seed - Vestige[/url]
[url=http://www.youtube.com/watch?v=iXBzTPI_iNE]AKB0048 - Beginner[/url]
[url=http://www.youtube.com/watch?v=NeVpOkeyExk]Angel Beats - Thousand Enemies[/url]
[url=http://www.youtube.com/watch?v=4IoVXbILLQA]Aria the Animation - Aqua[/url]
[url=http://www.youtube.com/watch?v=siZ9LVivkjU]Code Geass - All Hail Britannia[/url]
[url=http://www.youtube.com/watch?v=BRnA86sIua0]Death Note - Reasoning[/url]
[url=http://www.youtube.com/watch?v=lUTkiY70PGA]Steins;Gate - Believe Me[/url]
[url=http://www.youtube.com/watch?v=F_eEVTO2nt8]Myself; Yourself - Myself Yourself[/url]
[url=http://www.youtube.com/watch?v=mBlj0IyB3pk]Mahou Shoujo Madoka Magica - Absolute Configuration[/url]

[url=https://www.youtube.com/watch?v=NwoDrRCibhA]The Cat Returns - Kaze ni Naru[/url][/quote]

[url=https://www.youtube.com/watch?v=5wq_uTMW0v8] h0ly shoot listen to it...[/url]

[url=http://www.youtube.com/watch?v=1VyfXVNGB3o]Touhou - Hourai Victim[/url]

[url=https://www.youtube.com/watch?v=PzfwgRQDgs0]Hitman Reborn Theme[/url]
[url=https://www.youtube.com/watch?v=ew0vGxOIyHs]Bleach sad Ost[/url]
[url=https://www.youtube.com/watch?v=zBp_Wa9rwrg] Gintama sad ost[/url]
[url=https://www.youtube.com/watch?v=vnlLXbhsD_E] castle in sky[/url]
[url=https://www.youtube.com/watch?v=7XfTXH5t4T4] Kimi Hana[/url]
[url=https://www.youtube.com/watch?v=F-4wUfZD6oc] River Flows In You[/url] this is not an anime ost but it is still pretty good tho.
[url=https://www.youtube.com/watch?v=so6ExplQlaY] Kiss the Rain[/url] same for this one.
[url=https://www.youtube.com/watch?v=AW773Eeohgo] Minene Death Theme[/url]
[url=https://www.youtube.com/watch?v=LBAKhWSPZ7w] sket dance theme[/url]
[url=https://www.youtube.com/watch?v=QBpTeIaX3_w] sket dance[/url]
[url=https://www.youtube.com/watch?v=ylmfcOtsT6Y] the world god only knows-chihiro Memory of First Love[/url]
[url=https://www.youtube.com/watch?v=MGUQHELVPsE] attack on titan[/url]
[url=https://www.youtube.com/watch?v=27EMAbTLtGE] magi[/url]
[url=https://www.youtube.com/watch?v=ug6VFj2aHWI] god of gambler theme[/url]

[url=https://www.youtube.com/watch?v=8M15yHEnEJ0]Tales from Earthsea - Teru no Uta[/url]
[url=https://www.youtube.com/watch?v=NwoDrRCibhA]The Cat Returns - Kaze ni Naru[/url]

[url=https://www.youtube.com/watch?v=To8dlsVxRDE]Kyousougiga - City Of Eternity[/url]
[url=https://www.youtube.com/watch?v=cEye-PV_rT8]Kyousougiga - Living a Dream[/url]
[url=https://www.youtube.com/watch?v=LjqhfgLNKbI]Tonari no Kaibutsu-kun - Tetsukazu no Kanjou[/url]
[url=https://www.youtube.com/watch?v=yylNjQ9tLY8]Grave of the Fireflies - Main Theme[/url]

I'll just leave these here for now
[url=https://www.youtube.com/watch?v=gMobOPSmZjc]Ergo Proxy - New Pulse[/url]
[url=https://www.youtube.com/watch?v=JahUAoFI2H4]Ghost in the Shell Stand Alone Complex - Smile[/url] (pretty hard to narrow down my favorite OST from GiTS since all of them are bootyful hnnnnnnggg <3 )
[url=https://www.youtube.com/watch?v=Rk1VakeukzA]Blue Exorcist - AOE Suite Second Movement : 5P+3P [/url] (this was pretty hard everything in Blue Exorcists OST Tracks are just too good Hiroyuki Sawano <3 )
[url=https://www.youtube.com/watch?v=VYVGmgAlbbw]Rebuild of Evangelion 3.0 - God's Gift [/url] (so hard to choose Shiro Sagisu <3 hnnnnnnggg soo gooooood )
[url=https://www.youtube.com/watch?v=oDJsWZ4WIuQ]Attack on Titan - Call Your Name[/url] (Instead of choosing its main theme something different; although everything in AoT is just as beautiful)
[url=https://www.youtube.com/watch?v=BnaC0RgEPCw]Gundam Unicorn - Unicorn[/url] (Every single one of Gundam Unicorn's OST are equally beautiful soo gooooooood)
That's it for now until I can think of more (lol)

[url=http://www.youtube.com/watch?v=rIY36UbDbQQ]Katyusha - Girls und Panzer[/url]
[url=http://www.youtube.com/watch?v=3oonxoK2iIA]Daidai Iro - Darker Than Black S2[/url] - I don't think this will ever not hit me right in the feels
oooh thought of another one [url=http://www.youtube.com/watch?v=cy4iJR2y_AQ]Kanpeki Will - Railgun[/url]

Here's a list from games you may have never heard about...
[url=http://www.youtube.com/watch?v=DtfzwOOlOII]Endless Voracity - God Eater Burst*[/url]
[url=http://www.youtube.com/watch?v=VtV1WgM1l9Q]Arisu of the Wavering City*[/url]
[url=http://www.youtube.com/watch?v=wahtkLPxOXA]Fury Sparks - Tales of Vesperia*[/url]
[url=http://www.youtube.com/watch?v=WeVAeMWeFNo]Atsuki Chishio Ni - Sakura Wars (Main Theme)*[/url]
[url=http://www.youtube.com/watch?v=oOI__ukMokE]All Correct! - Endless Frontier*[/url]
[url=http://www.youtube.com/watch?v=jO-sOvnxRD8]Wanderer Road (SP ver.) - Project X Zone[/url]
[url=http://www.youtube.com/watch?v=uULvsj8T5Pk]ROCKS - Super Robot Wars Original Generations (Project X Zone arrangement)[/url] (One of the good songs that was cut from the English release, unfortunately)
[url=http://www.youtube.com/watch?v=yCmTJVew_tY]Trombe! - Super Robot Wars Original Generations[/url]
[url=http://www.youtube.com/watch?v=rKyzN3jNw8w]Lao-Shan Lung Theme (Finale) - Monster Hunter Freedom Unite[/url]
[url=http://www.youtube.com/watch?v=O-dqMa1CwRc]Deviljho Theme - Monster Hunter Tri[/url]
[url=http://www.youtube.com/watch?v=6fgDJ5p5K7s]Erebos' Prelude - Ragnarok Online[/url]
[url=http://www.youtube.com/watch?v=QKEZT5IaRbY]Fort Farthest - Ragnarok Odyssey[/url]

* - Denotes a song which also appeared in Project X Zone

[url=http://www.youtube.com/watch?v=eeDZ1iFhowA]Point Zero - Fate/Zero[/url]

[url=https://www.youtube.com/watch?v=dwqjZ6Mu8Z0]Immovable Fortress- Accel World[/url]
[url=https://www.youtube.com/watch?v=UBc95Lx8sfM]1/48- Gundam Buildfighters[/url]
[url=https://www.youtube.com/watch?v=UxI-xfFIfiQ]Da Da Da Da- Outbreak Company[/url]
[url=https://www.youtube.com/watch?v=GQ7jQAOIgPU]God of Death- Needless[/url]
[url=https://www.youtube.com/watch?v=bbakTnNf8Lw] The Dark Challenger- Heartcatch Precure[/url]
[url=https://www.youtube.com/watch?v=tUENejqXNtE]World Overrun- Smile Precure[/url]

[url=http://www.youtube.com/watch?v=nmuoRPTnb-4]Samurai Champloo - Hiji Zuru Style[/url]
[url=http://www.youtube.com/watch?v=iS3yJcFtXOo]Hunter x Hunter (2011) - The Iaido Lunatic[/url]
[url=http://www.youtube.com/watch?v=PcSQZ5McnT0]Sakamichi no Apollon - KIDS ON THE SLOPE[/url]
[url=http://www.youtube.com/watch?v=yC0bA_NZ3vI]JoJo's Bizarre Adventure (2012) - Awake[/url]
[url=http://www.youtube.com/watch?v=VAoBQlhs74c]JoJo's Bizarre Adventure OVA - Dio's Dervish[/url]
[url=http://www.youtube.com/watch?v=MUTMw7rEsDk]Cowboy Bebop - Too Good Too Bad[/url]
[url=http://www.youtube.com/watch?v=l12TvP5nMVg]Neon Genesis Evangelion - Rei I[/url]
[url=http://www.youtube.com/watch?v=vhCQ6jQIgeQ]One Piece - The Very, Very, Very, Strongest[/url]
[url=http://www.youtube.com/watch?v=59ngH1vdTx4]One Piece Film: Z - Kaidou[/url]
[url=http://www.youtube.com/watch?v=77J-kuy9oHc]Hunter x Hunter - No Tema ~ Densetsu[/url]
[url=http://www.youtube.com/watch?v=k9XG9NGDaO4]Mushishi - Mushi[/url]
[url=http://www.youtube.com/watch?v=mk4M_lRGYIU]Gintama - Rules Are Meant to Be Broken[/url]
[url=http://www.youtube.com/watch?v=cwillIeMcx8]Uchuu Kyoudai - Yakusoku[/url]
[url=http://www.youtube.com/watch?v=Q_TppujP30w]Beck - Journey[/url]
[url=http://www.youtube.com/watch?v=VW2mRF6-zJ0]NHK ni Youkoso - Kyou wa Yuuhi Yarou[/url]
[url=http://www.youtube.com/watch?v=24GoHwX5uQg]Chihayafuru - Team Chihayafuru[/url]
[url=http://www.youtube.com/watch?v=pFMZ0xTmNcY]Natsume Yuujinchou - Yuruyaka na Aze Michi de[/url]
[url=http://www.youtube.com/watch?v=-IqwbVwo434]Kino no Tabi - He is Speed and I am Balance[/url]
[url=http://www.youtube.com/watch?v=XmZzcbGl9IA]Mawaru Penguindrum - Bonds and the Dreams and Nightmares[/url]
[url=http://soundcloud.com/animeost4e/izumi-makura-shiritai-full]Space Dandy - Shiritai[/url]

[url=https://www.youtube.com/watch?v=orlhO6mhmVU]Black Jack's Theme[/url]
[url=https://www.youtube.com/watch?v=TdcI-lNBqyg]Naruto Shippuden - Decision[/url]
[url=https://www.youtube.com/watch?v=J-Yg9N-q0Ok]Hunter x Hunter (2011) - Riot[/url]
[url=https://www.youtube.com/watch?v=9OwLhsCL0x8]One Piece - Luffy Moukou[/url]
[url=https://www.youtube.com/watch?v=dSNFCzTRqKU]Magic Kaito - The Phantom Thief[/url]
[url=https://www.youtube.com/watch?v=PYRnI-hVPIs]Detective Conan - Main Theme[/url]

[url=http://www.youtube.com/watch?v=nmKBFgUrBzc]Inuyasha - To the End of Feelings[/url]
[url=http://www.youtube.com/watch?v=5rYI2eG3DuQ]Steins;Gate - Believe Me[/url]
[url=http://www.youtube.com/watch?v=0aUSc5Oqblg]Eureka Seven - Final Wish[/url]
[url=http://www.youtube.com/watch?v=xGZH3djutZ8]Naruto - Tenten's Theme[/url]
[url=http://www.youtube.com/watch?v=dHdP6vmrzME]Umineko - Answer[/url]
[url=http://www.youtube.com/watch?v=PoYETuTsWoI]Nodame Cantabile - Nodame Rhapsody[/url]
[url=http://www.youtube.com/watch?v=szVHp9KcWpc]Detective Conan - Ran's Theme[/url]
[url=http://www.youtube.com/watch?v=If3111iO0ZY]Rurouni Kenshin - Warrior Blue[/url]
[url=http://www.nicovideo.jp/watch/nm16071286]Gundam Seed - Tachiagare! Okori yo[/url]

[url=https://www.youtube.com/watch?v=u0ow4tGgZWk]Ghost in the Shell - Torukia[/url]
[url=https://www.youtube.com/watch?v=Vcrb6365GsQ]Cowboy Bebop - Rain[/url]
[url=https://www.youtube.com/watch?v=QmTs-NcYGac&list=PLA314E6E8A2983EC4]Fam the Silver Wing - A Rose in the Wind[/url]
[url=https://www.youtube.com/watch?v=G-2YyuuM1Q0]Afro Samurai - Bloody Samurai[/url]

http://www.youtube.com/watch?v=fZT0TAQqCWM&list=PL71CC5D1F06FB648E
http://www.youtube.com/watch?v=Bh1ZimLQcsc

[url=http://www.youtube.com/watch?v=XJjnbhSTuqQ]Cowboy Bebop - Green Bird[/url]
[url=http://www.youtube.com/watch?v=xqPIM3QUIp4]Wolf Children - Ubugoe[/url]
[url=http://www.youtube.com/watch?v=atS0UcdAtHU]Wolf Children - Meguri[/url]
[url=http://www.youtube.com/watch?v=5p5OyLFQLCc]Gurren Lagann - Pierce the Heavens with your Drill![/url]
[url=http://www.youtube.com/watch?v=-9Do--Q97lQ]Gurren Lagann - Omae no XXX de...[/url]
[url=http://www.youtube.com/watch?v=CA2dKZfdBf8]Gurren Lagann - Libera me from hell[/url]

Gate of Steiner was the best OST I've ever heard. (Steins;Gate)

I'm not surprised no one has invoked the name of Oh! Edo Rocket yet. It's not entirely well-known, but it's got one of the best soundtracks I've heard.
Lyrics suck. [url=https://www.youtube.com/watch?v=mh3ixICGTyw&list=PL21EB1E64A6DCC4CB]Get your swing on[/url].

[url=https://www.youtube.com/watch?v=7ZTq2tPjE1Y]Grisaia no Kajitsu - Hana Saku Toki[/url]
[url=https://www.youtube.com/watch?v=GVhe4jbz2vs]Tonari no Kaibutsu-kun - Hope[/url]

@kcwt: Every track that had spoken language was unpleasant. You would think that the Japanese would stick to using the language they're best at, but that's not the case.

[quote=Yumtoast]I actually really liked GC's music (especially some of the supercell songs), minus the tracks that were riddled with ENGRISH.[/quote]

That German tho.

[quote=Plenair]Even bad anime can have beautiful OSTs. Not really a special list of OST, kinda generic, but dam are these beautiful tracks.[/quote]
The only one I can think of is Guilty Crown, and that was only because @kcwt linked a track. I actually really liked GC's music (especially some of the supercell songs), minus the tracks that were riddled with ENGRISH.

http://www.youtube.com/watch?v=PdyufUWSfrg
http://www.youtube.com/watch?v=V58Q0--uSD8

[url=https://www.youtube.com/watch?v=tjdYeOG15UU]Guilty Crown - Pianoforte-AdLib II[/url]
[url=https://www.youtube.com/watch?v=_-t06qBtiJk]Angel Beats! - Ichiban no Takaramono[/url]
[url=https://www.youtube.com/watch?v=C7CQdCvosTQ]Bakemonogatari - Hyouri[/url]
[url=https://www.youtube.com/watch?v=UxI-xfFIfiQ]Might as well slide this in[/url]

[url=http://www.youtube.com/watch?v=BQG7lOgdZzA]Yuyushiki - Setsunairo[/url]
[url=http://www.youtube.com/watch?v=c1Stdn4OvLI]Love Live - Wonder Zone[/url]
(was going to add Music START, but there aren't any good videos on youtube - mostly fandubs or piano covers)
[url=http://www.youtube.com/watch?v=k68NNBBq7w0]Mai Otome - Holy Otome's Prayer[/url]
[url=http://www.youtube.com/watch?v=aF6eNuAvLIE]Mai Hime - Mezame[/url]

This is p sick

[url=https://www.youtube.com/watch?v=vm0Vds38scQ]Ghost in the Shell Yakitori [/url]