The PS4 will sell very well. I'm not sure about the X1, waiting to see how the price cut affects things (though it'll remain dead outside NA/UK). Same for the Wii U, if Nintendo markets it well, and does a sub $299 MK8 bundle, it might move a decent amount.
Essentially, an MK8 $279.99 Bundle, X1 Halo bundle $350, PS4 + Some other game $399. Results I think will be PS4>>X1>Wii U







