I have 5 80s and 4 of them are pretty well geared(at least 5400 on the GS). My rogue is a fresh 80 and I'm still working on her. She's so new I haven't worked her into my sigblock. Or HAVE I. :O Rogues are sneaky.
I'm going to keep my pally my main, and level some alts just for fun. Sometimes I'd like to be a rogue, sneaking around, sapping people. Or a mage, hurling fireballs and bolts of frost at the enemy. Mainly though, it will be a paladin.