I think you're misunderstanding my point, a retard who don't know how to play, can't do his job right and will be the worst tank/healer/dps in the game, there is no discussion on that as its a fact. But someone with ilv30 gear wont come close to someone in i100 gear no matter their player skill level. However that being said, two people geared exactly the same, one who has a brain and one who doesn't, it doesn't take a rocket scientist to know who will do better.