Pfft what's with people and thinking leveling as Holy is hard or bad? I leveled a Holy Priest from about 20 to 80. Long hours of grinding, solo questing, all extremely easy with hardly no down time.

I'd MUCH rather level a Priest as Holy, Shadow is overrated and not a helleva lot better for DPS than a Holy/Disc mix.

Same with Resto Druids, they pwn for grinding, and Resto Shaman? pfft they're basically immortal.

The only healer I wouldn't want to solo play as is a Holy Paladin, but I wouldn't go Ret either..for a Paladin the best spec is Prot, hands down.