I've fought against a few of these all-paladin groups too, and while they have a lot of annoying tricks up their sleeves, in the end, they just weren't able to bring enough DPS to actually kill anyone. Eventually all their CDs are up and then they really don't have much else to go on.

I dunno, never done it myself, but I'd have to say, especially while boxing, it just doesn't seem like it would be that strong.