I'm going to have to go with the PS4. There's definitely more demand for it than any of the others. Plus, Sony looks to be on the ball when it comes to supply. Then you have to think that the PS4 will be launching in more regions in Q1 of 2014, most notably in Japan, where it will DEFINITELY do better than Wii U and the One. Personally, though, I think Sony should have launched the PS4 in Japan just before New Years (which is their largest shopping period.) I guess they figure they have that region locked down, at least when compared to the One.
As for the PS3, it should do very well this holiday, as there should be $149 SKUs on Black Friday. However, outside of Japan, I see its sales dropping rather quickly at the beginning of the year.
