I played Marvel Legendary and found the gameplay and cooperative aspect to be very underwhelming.
Yeah, I didn't think much of it, either. The Legendary Encounters games (Alien, Predator, Firefly) are much, much, MUCH better.
I've got Big Trouble in Little China! It is a fun game, though the rules are a bit of a mess in terms of trying to find info during a game. I also picked up the Legacy of Lo Pan expansion, which allows up to 6 players to play it and adds a whole different campaign that you can play (though I haven't had a chance to try it yet). It's a fun game, but setup takes forever and it is an absolute table devouring pig.