Orchestral Touhou 10 Mountain of Faith.

[url=http://www.youtube.com/watch?v=Dy4wSW7SNLo] Midna's Desperate Hour[/url]
[url=http://www.youtube.com/watch?v=7-Iz_O6351U]Snowpeak[/url]

I actually liked the Skyrim soundtracks. It gives that Skyrim setting when you listen to it.

I like most of Sonic Adventure 2's OST, but my favorite BGM of all games has to be [url=http://www.youtube.com/watch?v=wwRVqw-aW-Y]this at :50.[/url]

http://www.youtube.com/watch?v=heCyX-Bj_2A

http://www.youtube.com/watch?v=VTsD2FjmLsw Skip to 0:50 thats where it starts to get better.

probably 13th struggle http://www.youtube.com/watch?v=0swn8cI4YAs

anything from:
-jet set radio series
-mvc2
-streets of rage series

[url=http://www.youtube.com/watch?v=iS2cuvnqbmk]Sonic Riders - Theme of Egg Factory[/url] Dat Bass

I have lots of favorites

Everything Kingdom Hearts pls.

l'll post it later, but I find Rundas (Metroid Prime 3) an awesome BGM.

And you know that Cho Gath game that LoL had for April Fool's? I loved the Teemo song in it. ;~;

EDIT:
[url=http://www.youtube.com/watch?v=ZbbUv1hz6mE]Phendrana Drifts - Metroid Prime[/url]
[url=http://www.youtube.com/watch?v=QQCZIb0fbt8]Magmoor Carvens - Metroid Prime[/url]
[url=http://www.youtube.com/watch?v=PDlpaK4ScJw]Omega Pirate - Metroid Prime[/url]
[url=http://www.youtube.com/watch?v=nLLjibR_c4Q]Meta Ridley - Metroid Prime[/url]
[url=http://www.youtube.com/watch?v=T7uZf4uiMN8]Metroid Prime 2 Title Selection Screen[/url]
[url=http://www.youtube.com/watch?v=XuPJm2XQT0A]Torvus Bog - Metroid Prime 2[/url]
[url=http://www.youtube.com/watch?v=7ZX2N9_7NO8]Torvus Bog (Submerged Temple) - Metroid Prime 2[/url]
[url=http://www.youtube.com/watch?v=p6OTbdgt_Ms]Sanctuary Fortress - Metroid Prime 2[/url]
[url=http://www.youtube.com/watch?v=6nMFLquJeCc]Rundas - Metroid Prime 3[/url]

What I love most about the Metroid Prime Soundtrack is that if you listen closely to some of the tracks especially the Title Selection Screen and Rundas, there's lyrics or words being said. In Rundas' song, Rundas is calling out Samus' name.
In the Selection screen, you can mildly hear "Join us, join us, Samus." It's really buzzy, but you can make of these words.

Chrono Trigger - Corridors of time

http://www.youtube.com/watch?v=bNzYIEY-CcM
&
Piano version
http://www.youtube.com/watch?v=uSgst7Pq7w4

Basically anything from Square (Enix/Soft/anything else they'v been) and Touhou Project games.

http://www.youtube.com/watch?v=wnzJBVg5uwQ

[url=http://www.youtube.com/watch?v=IWx_kedyPpA]Yu Narukami[/url] As of right now. Been looking for this game for quite a while at my local gamestop and just recently found it