I recommend these:
Pokemon US/UM (skip X/Y)
Animal Crossing: New Leaf
Mario 3D land
Fire Emblem awakening/fates
If you have a Switch, just get mariokart 8 deluxe and skip 7.

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.