Quoted from yzfguy:In my opinion:
Colordmd on AFM is my first and favorite. I have added it to many other games, but afm just looks terrific.
The ung mod is also awesome and adds a really cool effect.
ColorDMD are just great and very easy to install.
I found the Bill Ung saucer mod to be laborious and fiddly. It also had a few weak points in the design (that little chip leg solder joint in the backbox) but otherwise a great effect once done.