#1 Xbox One : Being that the U.S. is the Xbox's strongest territory and that Microsoft has done heavy marketing for their console, I think this will be the month Xbox One wins. Stock will also make it beat the Switch, even if just by a bit.
#2 Switch : Family sales and holiday gifts will make this a success this winter. I almost want to say it will be above Xbox One, but ultimately I don't think A ) enough demographics are being hit and B ) there is enough stock for it to really beat the Xbox One. Games like Mario Kart 8 alone can make families purchase the system.
#3 PS4 : Demand has mostly been met I think. While PS4 beating Xbox One during November was a huge shake up and certainly a success story, a big contributing factor was PS4's sales. A 189$ 500gb Xbox One simply doesn't compare to a 1 TB PS4 slim at 199$. But now that deal is gone, and the NA audience will skew towards Nintendo and Microsoft.
Edit: If PS4 gets the same price cut or similar deals as November's, then I will put it at number one again!
