White Mage.

Tried maining SCH for a bit. Tried AST in raids. Keep coming back to WHM. It is just a very satisfying, very completely toolkit. On White Mage, I never wish I had more heals to handle a certain situation. Cure II is much better than Lustrate if you precast and I don't have to worry about stacks or cooldown timers limiting how much I can heal. I do have to watch MP, but as long as I'm picking the right tool for the right situation, it's actually not much of an issue.