Usually I use a half-orc barbarian with a greataxe and massively boost his strength. I think at some point I may try an orc barbarian. The phrases "Krug smash!" and "Time to get ale!" are often used. When my current character goes epic I'll probably go with the epic-barbarian class, but I've been looking at a berserker class epic-level barbarians can use...
Someday I should try playing as a bugbear, apparently that's possible. Druids are kinda neat too though, since they can turn into animals. Or maybe a blighter? (anti-druid, basically, like blackguard to paladin.)