#1 Disc Priest
Gear From Every Tier!
Helm - Valorous Crown of Faith Naxx 25m
Shoulders - Mantle of the Avatar TK
Robe - Robe of Insight BoE World Drop
Legs - Cournith Waterstrider's Silken Finery BoE World Drop
Gloves - Gladiator's satin gloves Season One PvP
Belt - Latent Kor'kron belt BoE World Drop
Weapon - Ethereum Life-Staff - TK
-Hensong

(xmog.cc set link) (wowhead compare link)

Shoulders: Mantle of the Avatar
Chest: Robes of Insight
Waist: Reformationist's Belt
Legs: Cournith Waterstrider's Silken Finery
Feet: Home-Warding Slippers
Gloves: Gladiator's Satin Gloves
Main hand: Ethereum Life-Staff