I actually agree with Jim. Thing is, while the Wii U had its hardware foibles, it's had a year to deal with them, and unless I missed something, a Wii U received this year is nearly guaranteed to work out of the box. Both the new systems have had hardware failures, albeit a small percentage, which is scary to a buyer of a machine costing 400 or 500 dollars.
Unlike the others, the Wii U had a large library provided at launch via original Wii compatibility, and this year it got a few more good titles (Wind Waker HD, Super Mario 3D World), and has more coming down the pipelines.
The Xbox One, from what I'm hearing, has a decent launch lineup, but without back compatibility, it doesn't have the advantage its predecessor enjoyed. Playstation 4 is awesome, and finding one is very difficult (over here we've been jokingly calling it "Unicorn", it's so hard to find one), but also, no back compatibility, which is even worse for it than the XBox because, in my mind at least, it really doesn't have many of its own exclusives released, and, as far as I know, its good ones won't be released until next year.
Of course, the new ones are, well, new, and new hardware sometimes has problems out the gate. A year from now, both those new consoles will be in a better situation barring the unforseen.