Hey I haven't played in 2 years and I'm a returning healer, i have all the healing classes with my 710 ilvl 100's and I'm wondering what is the best healer class? Or at least the most sought after for mythic raiding? I can't decide between holy priest mist weaver and resto druid, but totally open to paladin or shaman if their more needed.
General consensus is that healing classes are more balanced than ever before. That said, you might want to take a look at disc priest to see if it interests you as the spec was redesigned - now a good chunk of their healing comes from DPSing.
Very balanced atm, Pallys and Discs have niches, very strong ones, they don't exactly "shit on everyone" raid teams need multiple healers.
The only healer every raid team NEEDs, is a Hpally.
But raid teams want a Hpally, RDruid, RShaman. The 4th slot is best filled by a good disc, but if you aren't very good at disc, then Holy suits that spot just fine.
If your choices are between RDruid, Holy Priest and MW monk mainly, Rdruid seems to be the best option (Keep in mind, healer specs are extremely well balanced atm, so they are all viable, which you're best at means more than which is minorly stronger)
But really, for once, you can play what you like, and as long as you're good at it, you're set. Even MW monk, it's a bunch of BS to say they're trash. With all played at peak level, yeah MW would be the worst, but it isn't BAD.