From my experience, working at Best Buy in the games section, and having ample time to play with these things--and having to reset and recalibrate them fairly often so customers can use them--all I can say is they both have their wonkiness and issues. Move requires way more calibration than either the Wii Remote/Motion Plus or Kinect. Kinect's reaction time isn't perfect, but it's mostly a side-effect of the in-store display model I've used. It'd doesn't do so well recalibrating every few minutes to different sizes of people. It manages, but isn't perfect. Plus, in a big, open store, there are a lot of distractions for the camera.
At least Microsoft thought outside the box and tried something other than directly ripping of Nintendo.
The thing I don't get about Move is, if the camera can see those glowing balls so well, why does it need any calibration at all? Why can't it adjust on the fly? And menu navigation with the thing is asinine.
