General

aran..if not try pally..hero gets boring..

In terms of fun,
I'd say
1. Hero
2. DrK (not bad)
3.Pally (oh god pally)

I love my Drk but you might not o.o

I have all three of them. DrKs are really good for mobbing when training and are, IMO, fun. Heroes are good for 1v1 damage with bosses. Paladins are also pretty neat too because they barely die in most cases. They also have elemental aspects if you're into that kind of stuff. Overall just choose which class would be the most fun. I personally LOVE my DrK.

Out of the 3 you said Heroes are the best. But the best warrior is probably Aran, I hit 100k at lvl 75 with like 500k funding and a lvl 50 polearm

Arans are good for training your fingers, if you know what i mean

Arans smell.

if u want fun id say aran LOL...hero//pally///drk area all boring atleast aran has combos
~~COMBO BREAKER~~

are Heros powerful mobbers and fun?

Paladin, you can't really die in most circumstances, and mobility is still kinda awkward.