I don't like predicting numbers myself.
Both PS4 and Xbox One down. For one, both systems are reaching the point of saturation in the US, and for the first time in a decade COD didnt release in November. The two big games of November both turned out to be duds. Lets say, by about 200-300k each.
Switch up. They actually have a black friday this year (unlike last year), as Pokemon is here too, so an increase of 300-350k is what I predict.
Bet with Intrinsic:
The Switch will outsell 3DS (based on VGchartz numbers), according to me, while Intrinsic thinks the opposite will hold true. One month avatar control for the loser's avatar.