To make it better (it can easily be done)...
1. Add in great cut scenes like Padme's Parents and The formation of the Alliance.
2. Cut crap antics...(jarjar, "surprise, I'm a pilot" Anakin, and fart noises come to mind)
(WHAT KIND OF ADULT makes a movie with FART noises? COME ON)
3. Destroy TPM puppet pseudo-yoda.
Three easy things.
TF.N has a link to some fan arts of what a saga DVD collection might look like, here's one of 'em:
http://www.rixgrafix.com/index_094.htm
I tried to download and attach, but my comp is being stupid.