Just listing exclusive games for SNES alongside their closest Genesis equivalent or counterpart, so if you like one game on one console you might try the other.

Not going to count games that were technically-multiplatform (on both SNES and Genesis) despite being heavily-associated with one console over another or even being entirely-different games, so Earthworm Jim, Mortal Kombat, Shadowrun, and even Aladdin don't qualify (though I will give some leeway to Sparkster and Ghouls 'N Ghosts, since they're technically different games with a different name on Genesis).

I'll go ahead and add Sega CD games to the mix as well to squeeze in some more variety.