Zelda: Skyward Sword.
Without a doubt the best Wii game I've ever played. The controls are brillent, especally using the sword. They are a little hard to get use to but once you've mastered them, Oh god its amazing. The Gameplay is a huge step up from Twilight Princess and any other Wii Game.
So far the story is pretty good, There's still the whole 'Save the Princess' aspect of it but i've always liked that anyway. Oh and the Artstyle is beautiful.
I've also been playing
Mario Kart 7. It mixes the best parts of Mario Kart DS and Mario Kart Wii into one great game, Best Mario Kart by miles. (I've just unlocked Wario so its even better
)