Really hard to tell since none releases any game during december afaik. Even the Wii U has a small shot due to Smash bros and the simple fact that Nintendo consoles thrive during holiday season.

November, however, seems to go to Xbox on NPD. Worldwide, on the other hand, the PS4 will win both month for sure.

I voted XboxOne, but only if MS keeps selling it at a competitive price, which means 100 dollars lower than the PS4.

The xbox one still has yet to outsell the ps4 even after the drop, I don't see why it would change now.

PS4 I guess.

Any discussion related to Xbox > ps4 are regarded to NPD or globally in the US.  Some don't have the courage yet to be predicting about a possible Xbox one > ps4 WW.  I'm guessing they are waiting BF results to see how much xbox one outsell ps4 in order to make prediction for holiday about xbox one outselling ps4 WW.

PS4

There is no supply issue this year.

At this point, all I can say for sure is that the Xbox One has a solid chance of winning November, as the odds seem to be in its favor. The thing is, the PS4 has shown a propensity in the past for saying 'Fuck the odds' and winning the month anyway, the Xbox One has more things going for it than it has had any other months this year, both in terms of at least some of the charts, (it's seems to be charting at a higher boost than any other month,) and obviously the combination of bundle releases and new title releases, (if any boost carried over from Sunset Overdrive's late October release, that is.) Whether this ends up being ENOUGH, I wouldn't want to put money down, but I do think the PS4's the one with a bit of an uphill battle that month.

December, on the other hand, I think the odds are actually more in the PS4's favor; its various bundles and deals released later in November, so there might be more of a residual boost exclusive to them than the Xbox One's bundles. The Playstation Experience has the potential to show some cool things that could turn heads, (Wild card, given we don't know everything that will be shown there,) and if nothing else will thrust the PS4 into a PR spotlight that might spread s'more hype and word of mouth on top of what already exists. Aaaand there's the usual higher baseline contributing, as December is a lot more straight-forward, or 'on even ground' if you prefer, than November's confusing, bundle-filled discount fest.

I actually hope the Xbox One does win November's NPD, even if by just a little, and then loses December, because I'm highly interested in how Microsoft's PR would handle it, all considered. Heck, they rang some victory bells at winning a couple of WEEKS, if they win November, there's likely to be a full marching band and streamers... which would make any silence they fall back on over a December loss all the more noticeable. xP

Also, though I quite adore my new PS4, would be nice if Sony was under the impression that Microsoft COULD take back the U.S. if they're not on their toes. =P Microsoft pulling out all these stops and losing anyway would border on 'WELL, they're screwed!'

X1, the momentum it built this month will cascade like an avalanche in December