Death3044, between the SNES, Genesis, and GBA emulators, my ROM directory holds around 2,700 ROMs. For the most part, the majority of the ones i've tried have worked. With some of the new functionality added to the SNES emulator recently, a whole bunch more games work.
I'm not saying you SHOULDN'T work on a list, but i'd think it would be a task of monumental proportions. It might be a better idea to post a thread for each one of the emulators, and ask members to contribute info on what works and what doesn't.