All my gamepads in buying order from left to right. I really like the wired NES controller at the left but wireless is more comfortable. The 4 button 8BitDo NES controller next to the left one ist very nice but Bluetooth has more latency then 2.4GHz controllers. I use this one with my Android devices when traveling. The two SNES 2.4GHz controllers in the middle are in my livingroom connected to a RaspberryPi running Emulationstation for playing on my TV. The two 2.4GHz controllers at the right are in my office connected to my PC. My favorite is the SNES controller with the purple buttons. Best quality are the 8BitDo controllers but they are more expensive. All of these controllers are very nice to play with. I prefer 2.4GHz controllers because they are easy to configure with RetroPie and Emulationstation. Bluetooth on a RaspberryPi sucks in many ways. More latency, more power consumption and also harder to configure.
SNES Gamepad 2.4GHz USB Wireless - NoName. The SNES gamepad exactly like the original except that it is connected wireless using a 2.4GHz USB dongle. Very nice to play with on a RaspberryPi because of the easy configuration. Price: EUR 20.00
SEGA Gamepad 2.4GHz USB Wireless - 8BitDo. Very hight quality 2.4GHz USB dongle based SEGA gamepad from 8BitDo. Would be my favorite but for Nintendo games I prefer a pad with less buttons. But this pad is really awesome. So for playing "Sonic the Hedgehog" this is my first choice. Price: EUR 26.00