I consider myself pretty smart (clearly above average). I haven't played this game that long though, since start of Wotlk with some pauses. I think now that I'm a good player, and that I might, MIGHT, have the potential to be a great player if I invest enough time. I would never be able to handle that grind like raiding that they do and I doubt I would ever be just that good.
Just waiting for our guild to start focusing on HC modes now, just need to get 2 players back.