Troll is the best min/max for shaman because of racial regen & decent stats. 25 wis / 5 sta
inb4 ogre fanboys grit their teeth and get red in the face.
But to what DeathsSilkyMist said... Once a shaman gets torpor, Race doesn't matter. It becomes a skill based class at that point. I've personally seen shaman of all races perform better than the min/max races. I even know a few barbarian shaman who can put ogre/troll to shame in the field.
I've soloed
some of that hardest content as a shaman,
Solo Grandmaster / Solo God Mode