Viable 5 man melee setups for PvP

[Apatheist]

1 Druid +2 Warriors +2 Paladins

Ah I misread your question. Swapping a warrior for a druid would reduce your overall damage a little in PvE but you'd still be able to clear fine. In PvP 2 warriors with freedom will still wreck casters pretty quick. It'd be a bit more to think about like putting a shapeshift macro on the same hotkey as your freedoms so the druid can shift out of CC, etc. but it'd still work fine I think.

I'd probably go full feral in that case for the 3% crit buff for the warriors. At least while you're mostly focused on dungeon farming for preraid gear. 3% Crit is pretty huge.