Can't comment on ps move, as I haven't experienced it yet.
Xbox vs Wii.
I've tried the kinect, at my local supermarket, they were advertising it, with a table tennis game. I found that you need to be in a certain spot for the kinect to pick you up as the player and that if you move too much or too far the player disconnects.....this in my eyes is bad.
The Wii...ok I might be slighty biased as I own one, and have had Nintendo since the NES & GAMEBOY. anyhow. The only flaw I have with the Wii is that the remote to sensor bar only has a range of about 7-8 ft.
It's either that or I have hardware issues I don't know about.