Just Dance is on other platforms besides Wii U, so there's no need for this thread to be moved.
I've only played Just Dance 2014 on the Wii with my friends. It was much more fun than I expected it to be. Just Dance makes you feel like you're burning tons of calories after each song lol. I like how with the Wii U version of JD2k16, you can put an app on your phone and use your phone to dance with, rather than having to use a clunky Wii remote and nun-chuck. Yet even still, there's a huge possibility of dropping your phone while you're dancing. :|