Originally Posted by Vitae

Dispel the warrior's blessing of freedom + shiv crippling poison onto him. He will move slower than the hamstrung priest, while you own his face. If he intercepts the priest, kidney shot him while the priest gets range again. Be super on the ball about dispelling BoFreedom + reapplying crippling. If he switches to you, the priest must manaburn the paladin while keeping you up (evasion is of course huge here, use it when you're show he can't switch to the priest the second you pop it). Fighting in an area where the paladin can't easily dodge out of line of sight to avoid mana burns is huge.

That said, it's still advantage to the warrior/paladin, but if you play it properly you can beat a whole lot of them at least some of the time.

Edit: I don't know if you use that spec in your profile in 2v2, but quick recovery is huge for that particular match up. Still by no means guarantees a win, but helps a lot on the mana war.