In this case, I actually agree with quickrick. While the Switch will blow by Xbox with relative ease WW, in the US, Switch passing the Xbox One is not guaranteed by any stretch of the imagination. Xbox One has sold over 21 million units in the US alone. Not that far behind PS, which is about 24 million sold.
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.