Obviously Fifa

I believe Fifa 18 will sell around 13-14 Million units (PS4), if its less it would be disappointing.
I have no idea how Super Mario Games sold before, its gonna be HUGE, but will it be something like 14-15 Million!?!? I dont know, but obviously Super Mario will sell for years just like Zelda and Mario Kart and Fifa 18 will sell for 1 year.

I would say Fifa 18 will win, even tho when Fifa 19 comes out 1 year later, but lets see how it goes.

FIFA 18

Over 12 months fifa until the the next fifa arrives and it takes over.

On ps4 alone I can see this fifa like the last one selling over 10m. It's insane for an annual sports release.

FIFA. The Switch install base around the launch of SMO is small. It will continue to sell well into the future, but it can never get the release window back. I bet 10-11mm for SMO, and 12-13mm for FIFA on PS4.