Quote Originally Posted by davidbrit2 View Post
Most Genesis games seem to run at 320x224, with Sonic 2 being the lone example of interlaced mode. I've never seen an SNES game run at anything but 256x224. If you know of any, I'd be interested in checking them out.

I think it boils down to this: Genesis was better for lots of motion and finer details, and SNES for color depth and in audio fidelity. That's probably (partly) the reason why the Genesis had the sports and shooter markets, and SNES had RPGs. Platformers were mostly a tossup, not depending too heavily on either strength.
I find I tend to prefer platformers on Genesis, as the larger horizontal resolution allows you to see more. Platformers that were made exclusively for the SNES are usually fine, but multiplatform ones were cropped on SNES.