The way I see it is that legendaries became legendaries for a reason and that is because they are strong enough to be considered legends. If salamence is so strong, how come he isn't a legend, maybe because it is his low defenses, and tyrannitar, maybe because of it's super low speed, and metagross, again low speed. If a pokemon was considered uber or legendary, then it is better than normal pokes therefore too good for normal play, I think this shouldn't even be being discussed. Legends are legends for a REASON!!!!!