Playing devils advocate, the author does list the most prominent/active emulators for each system and even manages to generally characterize the difference betw

Playing devils advocate, the author does list the most prominent/active emulators for each system and even manages to generally characterize the difference between Snes9x and ZSNES. That being said, the list doesn't meet it own criteria, even with "best" being defined in a loose, consumer sense. While I'm here, I highly recommend Robert Broglia's, http://www.explusalpha.com/ http://www.explusalpha.com/ , emulators for Android and iOS. They can be pricey, but almost all of them are GPL and Robert cites his sources. The exception is Snes9x EX(+), which is free and under a noncommercial license.