Happy dancing.

The PS move controller is far simpler to setup, but personally I prefer hands-free dancing, and I would rather put my focus on getting the full body choreography right than worrying too much about a single body part (the right hand), though to some extent the move controller (or even a phone) can tell if the full body choreography is lacking in certain ways on a variety of moves

My 3 year old daughters are getting to that point where they LOVE singing and dancing.