Orc.
Orcs are the best at anything physical period. Of course they only really shine during boss/dragon fights, but no one can touch them when it comes to damage and damage reduction during these periods.
My current character is an all stamina, no health or mana Orc Archer. Hitting Berserk really is god mode, and I don't let ADD dragons fly around enough to get distracted by a rabbit ten miles away that pissed it off in a previous life.