Xbox One had a great launch, but then it declined a lot. If you compare the sales of 2014, the things are very different: 1,833,066 (XOne) vs 1,261,999 (Wii U).
Bet with Teeqoz for 2 weeks of avatar and sig control that Super Mario Odyssey would ship more than 7m on its first 2 months. The game shipped 9.07m, so I won