To get me to play WoW my unusually generous brother is buying WoD and a 3 month card for me, I've previously played a (ridiculously good) protection warrior and I'll probably keep playing that character. However I wouldn't mind having a free level 90 so my question is what healing class is the most fun to play/most overpowered? I'm thinking Druid at present but I could be swayed to Shaman or Paladin; I have a priest that's 59 from AV twinking days so I'm less inclined to make one of those. I played a Commando healer in SWTOR in my most recent MMO experience (which was fun though the disgusting microtransactions eventually got me to quit) and did play DPS in Warhammer since that was just all murder all the time (also having like 80 healers on call was nice).
I think the PvP in WoW is atrociously boring pillar hugging so that's not really a huge concern.