I have a friend who plays sunsinger and he always says how incredibly OP it is but not that many people even realize it. The super is good, the grenades are amazing, the warlock melee is the best melee out of any class, but what makes the dang thing so broken is that you can punch someone once and instantly get an over-shield; you don't even have to kill that guy. Majority of my friends that have played the sunsinger have given up playing PVP with their hunters. EDIT: I guess I should also point out that he has 3.5+ K/D on his warlock. If you know how to play with it, it is by far one of the best classes.