Both will win, because the margins won't be big enough for anything more than a meaningless PR report.
For all of MS's bravado about 'holidays are the only thing that matter', 2015 is the problem for them honestly.
PS4 has a TON of momentum, and the half million new PS4 owners added in September will flow into October/November/December as networking effect happens in a social-media connected world. This isn't to say that MS doesn't have some good deals in the pipe, but it's all focused on the Nov/Dec timeframe.
So I predict a + or - 10% for Nov/Dec with both selling extremely well. But I also think X1 will drop off a cliff in January and stay there until Halo 5.
This gen has no more surprises for us, the die is cast.







