Get Rayman. Aside from the game content, they have new online challenges everyday (to finish the fastest, to reach the farthest, and so on), I've been playing it since April on the challenges app that Ubisoft released, and the competition is cool. Currently ranked 7th in the world!
While Wonderful 101's trailer looked great. I heard the controls was someone iffy. But I'll eventually be buying that too anyways..