Its hard to find a setup that works well with a solo Ret paladin. I play Rogue/Ret/Priest in 3's and it use to be a rockin setup but when Ret got its damage nerfed the comp became subpar.

We pretty much get wrecked by any good wizard cleave team and teams with mages are almost a guaranteed loss for us as well if the mage is decent.

For 5's they really don't fit in anywhere unless your running triple melee cleave which most people don't