Over 80% of all Nintendo Switch titles released thus far run at 60 FPS

[Pemalite]

Framerate is more important than Resolution for fluid gameplay, some genre's are more sensitive to framerate than others though. - Skyrim for instance is fine at 30fps, but Overwatch needs to be 60fps.

Higher resolution allows for a higher degree of clarity, sharpness and allows for smaller details to "pop".
Low resolutions can make things like sniping distant entities more difficult as well.

It sucks that in 2017 that console gamers simply can't have both.