In wow what is better healadin or holy priest

It depends on what you want to do.


Paladin healers are great for tank healing. They have big single target heals, but can be a little slow getting them off.


Holy Priests on the other hand make great AoE healers. Healing the raid/group rather than a single target (although they can single target heal).


Druids and shamans also make great group/raid healers. Shamans have their chain heals and druids have their regrowths and rejuvinations.