total damage is only one of the contributing factors toward Total PP. Both buffs and debuffs give total PP but deal no dmg, so it is possible that one who healed/buffed/debuffed most, gets priority when it comes to mvp with same total PP. Or maybe its decimals. Or alphabet. but im pretty sure that total dmg has nothing to do with mvp/vice mvp, its just for bragging rights, and its all about dem Total PP...