Especially in the lower levels, if you're a cleric healing and wearing robes you're most likely going to be sidelined for someone in heavy armor busting out the bull strengths and magic weapons. Though, I'm not sure I've seen that many that fit into the first category, just an observation.
I belive that there is more to a battlepriest than wearing heavy armor.
I would prefer a Cleric in my party, whos major concern is to zeal for the welfare of everyone, than one who buffs himself with bull strength and magic weapon and cares not for the others.
But a Battlepriest can be either of them. I dont understand why Battlepriest has become such a pejorative term, because in my eyes it is not.