Wii U 10 million, Xbox One 15 million, or PS4 20 million which will come first?

[YoyOne]

I would honestly be really surprised if Wii U isn't the first to reach its mark.
Yes PS4 and XBone had really great starts, but I think most players will wait big price cuts and multiple good games, something that won't happen until 2015.
Wii U will have strong games next year with Mario Kart 8, Smash Bros, Bayonetta 2, X and a brand new Zelda, while Super Mario 3D World will do great in the long run. I think the 10 millions mark should be reached in november/december 2014.