I love how this is all purely based on supers. In Destiny, you're super won't be there all the time, and you won't be using it all the time. Outside of the abilities, every class has access to three weapons, and that's what stops everyone from being completely different. My super may not be the best, but what if I'm killing more enemies and finishing more objectives than you. Does that make me bad at PVE just because I'm a hunter. At the end of the day, your character is only as good as you are at the game. I've heard stories of raid teams consisting of four hunters or more going into the raid and beating it flawlessly. If you have a team of warlocks who are horrible at the game, then you can't just expect them to dominate the raid based on their class. TL;DR: Skill>Class