Wii is still the king. Kinect might sell better than the Move controller, but you can't say that it's better than Wii.
Weekly the Wii is selling better the Xbox. Week after Week. Even though Kinect is out. Recently the EA Sports Active 2 was released. It's more than any other game having focus in the casual gamers. It has sold 3 times more on Wii than on Xbox with its Kinect. Casuals still prefer the Wii.
Also look at the more famous Wii Sports Resort. Even though it's in its 79th week it outsells Kinect Sports by about 500.000 in this week. It also managed to outsell Kinect Adventures this week in America, even though Adventures is bundled with Kinect.
Proud user of my PS3 and Wii. Japan for the win! 3DS coming soon!