Original Xbox and Gamecube would be my two picks.
edit: 6th gen in general was easily the best era of games, IMO. All three consoles were worth getting and had a great library of games, especially the PS2.Last edited by flashfire926 - on 26 December 2018
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.