A fully geared PvP priest took out 4 of my pally's and my DK last night. I don't think I ever got him below 50% health. It was nuts. Fear, Penance, Holy Nova or something like that - it was totally insane.

This was in an AV tower, so the fear really messed me up - I trinket-ed the first, but he came in again. Also we was joined by a one or two others after a bit, but he seriously kicked my ass. The last time I remember getting my ass kicked this bad was pre-WoLK right after patch 3.0 - when pally's were out of control.