i think a good pairing is a priest druid combo. Mainly because the druid can still do decent dps in bear or cat vs. a pally that has very little dps but can tank a whole bunch of mobs. I think i've had times in fast respawn zones where i've pulled up to 5 mobs and pulled it off with my priest as holy disc spec. But its up to you and you already have a druid team so try a pally and just spec him prot and pull a ton of mobs and have the priest heal