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JWeinCom on 26 June 2020
Between the NES and the Wii U.
The NES because most of the games simply haven't aged well. They helped define the industry, but there are few I'd really want to play today. Aside from the Mega Man games, Super Mario Bros 3, and Kirby's Adventure, there's not much I'd play except for the occasional bit of nostalgia.
The Wii U because pretty much anything of value on the system came to the Switch shortly after. Although pretty much all of the older consoles have their libraries available in some form, but the Wii U became obsolete real quickly.
