First place: goes obviously to wii motion plus since it is here already, revamping an experience Wii owners have since '06 when Sony and Microsoft weren't interested in fad gimmicks. It acts with 1:1 flawlessly accuracy.
Second place: Sony's purple wand. It acts with 1:1 flawlessly accuracy just like the WM+ but it requires a camera. Also, second hand attachment seems not to be available.
Third Place: Not in the same field as Sony and Nintendo Motion Control. Feels like a revamped Eye Toy, adds nothing really new in the gaming market. Project Milo was confirmed by IGN that the trailer shown was pure bullshit, unresponsive character that was just able to recognize a shirt color with the help of a developer controlling the game. For further enjoyment just look at my sig.
WELL BAM! There it is :D