The problem with supers is the cooldown. Even with times vengeance it takes about 4 seconds to charge, go through the animation and hit. So that means you have about 7 hits. Not only that but many supers are close quarters. A bladedancer and striker can get stomped and die. Void walker and golden gun can hit from a distance so those are mostly fine. Defenders weapons of light does not buff supers so it would be useless. Sunsingers get boosts to grenades and while that is useful it isnt high DPS. Ultimately supers are not the best. Unless you are using golden gun or nova bomb your super is almost useless.