Voted for PS4, because I've pre-ordered it, though it isn't shipping until 31.12.2013-2.1.2014. I'll get a WiiU at some point, but so far I've yet to be impressed by it to actually buy it myself (disclaimer: a few of my friends have it and I've played it quite a bit. Still I don't see me owning it too soon, since I've got access to it and it has relatively few games. The PS4 on the other hand is something not many of my friends have (yet) so it's a good buy for me.).
The Xbox One? Sure I'm interested, but probably won't be buying it any time soon. Just bought the Xbox 360 a while ago (after owning a PS3 and Wii for years) and it's got a huge backlog. A fantastic console, but then again, it had about 30 games available that interested me (exclusives and multiplats both) at the time I bought it.