I cannot comment on adywan's revisited because i have not seen it, but i like ADigitalMan's edit of Episode III revenge of the sith.

Revisited and The Phantom Edit as well as phantom editors episode II all have to go own my want list.

I have also heard that the MagnolianFan edits are also highly recommended.

Before Ady edit was released there was the darth editous release.

I am more of a fan of preservation Projects but have great respect for those who can take an awful film and make it enjoyable.