Now, I haven't levelled Paladin to 70, so I'm just going by what I see bounced around on the forums.

But as far as I can tell, Paladin has one edge over the other two tanks, and that's the fact they aren't nearly as heavily punished if the boss has to be moved, because their "burst" phase is long range. DRK can't build it's Blood gauge nearly as well when they have to break off, and it absolutely destroys Warrior if mechanics force them away from the boss during IR.

So Paladin, even if all utilities were removed or moved into role actions? Still has a good head start on other tanks.