about the Wii lag, it depends on the game and the programming
there are games where motion controls are broken, where some times motion is not even recognised and you have to repeat the motion, and games like Mario Kart and Zack and Wiki or Wii Sports Resort where there's no noticable lag at all!!
haven't tried Move and Kinect but i plan to buy some time.....
don't mind my username, that was more than 10 years ago, I'm a different person now, amazing how people change ^_^