SNES games look a lot better then most ps1/n64 games.

[Pemalite]

SuperFX 3D games have also aged fairly well. I.E. Starfox, mostly because it wasn't *trying* to be realistic, it was trying to be artistic.

In saying that, 2D Nintendo 64 and Playstation 1 games do look better than their SNES alternatives. I.E. Yoshi's Story 64.