The Wii is very good at what it does indeed, I've not really heard anything good about kinetic. I've heard that kinectic is slow/laggy when your playing it doesnt feel like your in 100% control.
On the other hand Playstation move is supposed to be alot more accurate and responsive than the wii. Obviously the PS3 graphics will kill off any Wii title as a modded gamecube cannot compete with a PS3, but overall i would say the Wii is the daddy of em all because it was designed to do specifically what the others took years to get onto. Most of the Wii titles take all the advantages of the wii-mote were as kinect and playstation move will have to have games specially made for there peripherals and alot of companys will not even bother making them for the ps3/360 as they will see it as a waste.