Why not have a look at mGalaxy
www.mgalaxy.com/. Its a nice looking, super simple FE. You can't customize anything, but I guess that's what you are looking for.

Its still being actively developed, as a 4.0 was just released this week. All you have to do is:
-download and run installer
-run mgalaxy_runway
-select mame, or whatever console/emulator you want to use
-specifiy application executable
-specify roms location
-specify snaps (screenshots)
-repeat for other consoles/emulators
-save + quit
-run mgalaxy
-play games
The site also has a nice tutorial video that shows how you select / filter / search / start games, and how the favorite system works. Its still based on v3.0, but none of those basics have changed.