Casters don't use PIE though. The only gear that can have it is crafted gear, and if you want to go that way melee can add parry to their crafted gear "just in case". There is no melee raid gear with parry, and there is no caster raid gear with PIE.
Healers fall into another category; they don't have to deal with accuracy like DPS do (and all acc on their raid gear is extra stats that don't take anything away from the more important ones).
So, considering that, the stat choice differences are:
DPS -> SS, Crit, DET, Acc
Heals -> SS, Crit, DET, PIE.
4 and 4.
EDIT: if you really want to get into it, look at tanks. Parry, Acc, DET, Crit, and SS are all important, and sometimes even PIE could be used (OK, no one uses PIE as a tank, but if a PLD wants more mana for stoneskin spam in T5, he can do it).
EDIT2: I'm also guessing you, OP, have no experience at all being a melee if you want to remove VIT from our gear. That would be the same, no, worse than removing it from yours.
