SNES

A personal favorite of retro-gamers, many consider it to be the best system of all time due to it being the strongest 16-bit console (other than the Neo Geo but very few had that (unless you were rich as fuck)) and a lot of companies really pushed it to it's limits! The library really backs it up there, and it has something for everybody, especially in the RPG category. SNES is reccomended over SFC because it's just easier to mod, though the SFC looks better and you could just buy a converter.

Final Notice
Only full Snes games are listed here, all Broadcast Satellaview games are ignored, though a few are worth playing if you can emulate them right.

Romhacks and Translations can be found at romhacking.net under the relevant sections. A few Rom sites will carry the translated Rom image along with the original versions if you don't know how to correctly patch a rom.