Games I'd like to see on those respective systems -
Move -
Red Faction: Demolition Days, or any other game that allows you to destroy a structure by swinging the Move controller. - The Move would benefit more from the Euphoria and Havok physics engines than the Wii would.
Kinect -
Virtua Cop - Kinect can sense your position, just as Virtua Cop did in the arcades. Put those two together and you have a recipe for a great arcade port.
Any RPG that allows voice recognition. - A LARP-based RPG would be fun, even if the idea is a tad silly.
An interactive music tutor, or self contained music maker. - Nothing like Wii Music, which is a foul version of a real music teacher. This game would allow you to use real instruments of any kind, woodwind, string, bass, ect., and allow you to upload music sheets that the game will help you with so you can play the song with less frustration.
As for the launch titles I want to try -
Move -
Sorcery - When I saw the E3 2009 live demo on GameTrailers for the Move, this was the first thing that popped into my head.
Tumble - Jenga-style games are always fun since stacking a sturdy structure requires some skill and dexterity.
Kinect -
Sonic Free Riders - I've seen enough E3 and other demo videos to make me want it on launch day.