Hey
Resto druids are pretty meh tbh, i went 2220 rating in 3's as resto/rogue/spriest so they are somewhat viable buuuut i did have 2 OP speccs with me and would never have made it if it wasnt for those OP priest shields. If your wanting to do 2's i suggest running with a shadow priest cause your REALLY need those offensive dispels coupled with the good dmg they bring and since we dont have our precious cyclone at 70 you'll need to bring a class with reliable cc. Also if your planning going with something like a rogue then be prepared to sit in stealth for a veeerryyy long time waiting for ur rogue to sap the shields off etc.
TBH you might as well go boomy /feral cause resto just cant heal for shit. Resto performs better in bgs than arena but once a rogue sticks to you you might as well go afk and make yourself some tea.