Yeah, i know its a pretty outdated comp but me (dk) and my ret are like pals for life. Recently we've been struggling to find a good healer for the setup and having a real hard time against resto shamans or two caster comps. Any insights on the matter would be most appreciated.
Priests are the best healer overall for vanguard comp, simply because the comp is a high DPS Zerg comp not a CC setup comp, and priest allows you focus any target for a kill. With mass dispel you can kill holy pallies / mages and any other comps you might need that dispel for as well as utilizing the extra burst DPS priest can add.
Saying that, a good priest is hard to find. A good rsham/MW is definately viable but will be more of a struggle and is less well rounded overall.