Wii U or X-Box One?

Wii U by far, if you already have a PC then it will have the most exclusives of the two, and it's already got a lot more games than the xbone.

Wii U is a bad joke, unless you have a kid under 14. xbone is a joke, you can get a far better PC for the same price, as for the exclusives: f_ck them, play other games.

Only lambs buy consoles.
Also you can get quite a lot of nintendo games to work with an emulator on PC, so there is absolutely no reason the buy any nintendo tamagochi.

EDIT: Also don't buy games for kinect, because kinect is a sad BS. People can't understand that you can't make a motion sensor that works well enough in 3D with just one camera(=sensor). As long as the kinect is a "kid's toy" quality product it's not worth bothering with.

If you really can't stop yourself from getting a console get a PS4.

If you really want a console, get a PS4, but I wouldnt buy any console if I were you, just upgrade your PC and keep playing on it.

PC!

Wii U definitely. Finally has a solid amount of games coming up, and most Xbone games can be found on PC.

Get a Wii U and Mario Kart 8 and enjoy your free online play.