I have a Wii U. I am glad I have it, but it doesn't get as much play as any of my other systems at the moment. (older consoles, mvs cab, ps3, pc) I mostly play Zombi U and Wind Waker HD. Wind waker has been a lot of fun to revisit. I also have NSMB and Nintendoland (pack in). For downloads, I have Earthbound, all the 30 cent specials when they came up, all the Final Fights, SFII T, Nano Assault Neo, and D&D Collection.
* It kinda sucks that there haven't been a lot of quality games yet, after having it a year. I am fine with mostly first party titles for this and Bayonetta 2.
* I like the way the tablet is used in Zombi U.
* I also like to play the games on just the tablet in another room of the house.
* IT IS A HD NINTENDO :-)
Other points:
1- I actually LOVE my Wii - the first party games are cool for Nintendo fans like myself, but I also like some of the more niche games and arcade conversions (Chaos Field, Sin & Punishment II, Castle Shikigami III, LA Machineguns/Gunblade, No More Heroes, Pandora's Tower, Fragile, Xenoblade, last Story). The Virtual Console is also cool for casually playing or previewing import games I might buy the original disc or cart for.
2- Seriously though, whatever happened to launching a console with a decent list and a killer app? (looking at you new consoles)