I own and have beaten X-Men Legends 1 & 2 for the Game Cube, and they're by far one of my favourite game series. The plots are good, the game play is better and the voice acting is awesome (Can you say Patrick Stewart?)!

X-Men Legends 2 is by far better than 1, partially because you can play as more characters (Bishop, Deadpool, Gambit, etc...) and even Brotherhood characters too (Magneto ), and the story is better in my opinion.

And if you want an even better game, get the "3rd" game of the series, Marvel: Ultimate Alliance.