Ogre Shaman V Troll Shaman in velious

[Obwin]

Troll better for leveling. Ogre best for min/max once you are 60 with torpor. Trolls are so much easier to level, regen really makes a huge difference if you are leveling untwined from 24-59.

Also trolls for superior looks.

If endgame soloing is your only consideration ogre is the easy choice.