SNES 9x 1.55 gives the best compatibility and 1.43 is also available for older systems. It is one of the best SNES emulators which works well with 1GHz+ devices.
Higan does not work with old systems of lower end versions. It nearly supports 12 systems but the problem is you need a high-end system to have the best experience. It has the ability to work on commercial SNES. The interesting features in this emulator are its cycle-accurate emulation, SPC7110 emulation, super game boy emulation. Higan is one of the best SNES emulators which also supports many video games.