Easiest class to level/sustain

[Swish]

I didn't think druids had a penalty attached, if you go halfling you'd level more quickly.

Class leveling penalties:-

SK/Paladin/Ranger/Bard = 40%
Monk = 20%
Wizard/Mage/Necro/Enchanter = 10%

Racial penalties/buffs:-

Troll/Iksar = -20%
Ogre = -15%
Barbarian = -5%

Halfling = +5%