Seems to me most kids are using the DS these days. Those who are too young for silly FPS games anyway.

Wii probably has more kid friendly games of the consoles, but some kids just suck at using the wii remote. Sticks and buttons might be easier to use. I'm mostly using my nephew and my cousin's kids as reference here. But really, all the consoles are kid friendly as long as buy kid friendly games.

Rase might be on to something, my nephew is crazy for Toy Story as well.