Most of the "Sch is OP" seems to revolve around Turn 5, as Turn 5 is obviously the entire game. I have not heal Turn 5 so I can't really comment much on it but I've seen many Whms who claim to be able to MT heal it just fine. Did Turn 1-4 with double Sch? Guess what? You can do that with double Whm too, shocking right? I seriously doubt anyone can solo heal Caduceus. Whm do leave Sch so far in the dust in WP runs though, that its not even funny.

Can't really comment on PvP, as its not even out yet and there's too little info to go on.