title says all, tauren UD or goblin. I don't like the looks of goblin, so UD or tauren. Tauren seems nice to me nature res 5% hp and stun. Trolls are retarded
I was thinking more about Psychic Scream which is an instant shadow spell used by all priests. As a healer you need to think about how you will be CCed or interupted and since psychic scream is both instant and a fleeing form of CC it is one of the most debilitating for healers.
In my thoughts i would have to say tauren or blood elf....Because tauren have that war stomp which can really help you when there's a lot of people on you and you need to cast a heal...so stun em and cast...and blood elf arcane torrent i think it's called is really good because it can silence an enemy and grants you mana so...That's my thoughts on it
Blood elf gives resistance to arcane as well, so it is good against mages. Mages are pretty popular, way more popular then warlocks, so I would go Blood elf over undead. Undead works against enemy priests, but so does a 2 second silence and staying out of range.
Bloodelf is the best right now, but it could change in the future. It all depends on what class the majority plays in pugs and in premades on which resistance is needed the most.