I've got all three classes at 29-30 depending on the gear im wearing. I've pvped and pved with them all and have killed and gotten killed by all the supers. While getting one shoted is annoying all the supers seem to balance each other out. I think what would help a lot of players if there was some sort of pvp tutorial in game that showed how all the supers cancel eachother out so new players can understand how they are balanced.
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Radiance and ward of dawn are both underpowered for pvp. This is why hunters are the clear choice for pvp, both of their supers are targeted towards it. But, i do agree i have a lot of play time with all 3 classes, and my kd was within a few tenths with each. Hopefully with HoW titan and warlock will get another pvp subclass and hunters will get a useful pve one.