According to the handbook barbariens gain benefit from rage only when they are not in heavy armor.
I can only refer to RAW, we have to wait how they implemet stuff in the game.
Didn't know that. Granted, I never played Barbarian.
But if this is the case, Barbarian/Druid for the win: Temporary hit points + half damage.
Fighters are not very good tanks on their own.
