I just checked out the first few episodes, and the way they set up Wolverine's main character status actually makes a lot of sense.
Actually I don't think it's been justified very well. They had
It's a decent show, but Wolverine's leadership role is blatantly just an attempt to tie in with the character's popularity and the upcoming Wolverine solo film, and it hasn't been adequately explained within the context of the series itself.
Given the bleak present and the liklihood of an even bleaker future (MRD, Sentinels, etc) can you see Catatonic Cyclops being the leader the X-Men need?
The only other possible option MIGHT be Storm, but Wolverine is a soldier. He'll make the tough calls "Slim" wouldn't dare make.