MK3DS looks pretty cool, although I hope the 2 lap thing and the mentally disabled AI are only there for the demo.
Kirby Wii looks awesome. Like a true sequel to SuperStar, the powers have various uses and you don't necessarily lose them when hit.
Kirby MA is just more gimmick crap. moving on.
Mario 3DS I am not impressed with at all. It looks to try and combine the 2d mario games with the 3d ones, but seemingly taking the worst elements from both. C'mon nintendo, give us a sequel to Mario 64 already!
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http://i55.tinypic.com/6jlws1.png
~~~~Yay~~~~