Not playin' anymore but the Warlock stuff looks really cool, especially the part where you get to talk to the demons to get their input on the quest items you find.
My shaman's been kicked around since coming back because my gear was leveling and dreadful pvp gear. But I've learned to survive much better thanks to that, I mean if I can hold my own and make people work for kills while they have Mal pvp gear and I'm in less than dreadful (I don't even have heroic weapons) imagine what I'll do to them when I have equal gear.
1. 2H axe from Lei Shen. I even consider to don't transmog it, it's very close to gorehowl as my personal best-looking weapon in the game
2. Throne of Thuder Raid
3. Green fire for warlocks