the kinect is a ton better than the Wii, the tech between the two isnt anywhere close. The Kinect sold over 8 million units in the first 60 days it was availible. As far as the software or games with it, unless you are a big fan of using a gaming console to do yoga or cardio, there are very limited games for it right now. Most of the newer games can utilize the kinect for certain things, but as far as kinect only games, the pickens is slim. If you have young kids, then based on that, I would say go with the Wii, due to the game libray they have in comparison to the xbox for kids.