In my opinion the only specs that should have an offensive dispel are healers and spellsteal needs to be changed to copy the spell and not remove it but thats a different discussion
oh, and shield barrier, demo shout, last stand and shield armor
Last stand is a 3 minute cooldown and 30% hp.
Shield armor psss wow huge.
I don't like prot either, but you should bitch about the right things not the most irrelevant ones.