Only the Wii U.
Being married, I have to get some games that appeal to my wife's tastes. SM3DW, Just Dance, Wii Sports Club, etc. PS4 and X1 don't really offer that right now. I'm pretty 'meh' towards the upcoming PS4/X1 releases. I'm waiting for a price cut, more games, and how MS fares in the next year before I buy another console. I got an impressive WiiU backlog to finish yet too (Zelda, AC, Splinter Cell, Injustice among many others.
I predict NX launches in 2017 - not 2016