Core Type R
Project site: http://www.lakka.tv
OS: Linux, Windows, MacOS
Platforms: PC; Raspberry Pi, CuBox-i, HummingBoard, Odroid-C1, Odroid, XU3/4, WeTek Play, Banana Pi, Cubieboard, Cubieboard 2, Cubietruck, …
Comments: Pretty stable distribution, Playstation 3 like user interface, very easy to navigate.
Reade more about Lakka.tv
Project site: http://blog.petrockblock.com/retropie/
Platforms: Raspberry Pi 0, 1, 2, 3
Comments: Pretty polished. Got it running on a Raspberry Pi, works fine for up until 8bit consoles like NES and Gameboy. Overclocked to 900mhz.