On the other hand, barbarians don't have experience penalties.
Ogres have -15%
Trolls have -20%
So you'll reach level 50 quicker as a barbarian, and have more mana for most of the journey. In the long run I'd suggest Troll or Ogre though, better starting Stamina, and both have extremely useful racial abilities. Unfortunately Ogre frontal stun immunity is
broken atm, but it will get fixed eventually and then you'll be an OP shaman.