Ok sweet. I'll look into the Supermario bros u as well. They didn't have all these games back when I bought the xbox 360 a couple years ago so choosing between the 360 and wii u was a no brainer for me at the time... Thanks again for the recommendations!
Last good mario party game was 7 I think, before they changed the format. Smash Bros would be a better buy, but depends on their tastes.
I heard the new Mario Party is a huge disappointment by and large...kids might not mind, though. Smash is awesome but to fully take advantage, don't you need the adapter AND the older controllers? This can run you $100+.