* No C3PO, no R2D2. Anakin built c3po?! I mean, small universe, isn't it?
* Anakin should be a lonely, sad, quiet kid. Not a freaking hyperactive kid filled with cheesy one-liners.
* Less gungans. Jar Jar proved to be necessary, but he could have about 5 minutes of screen time.
* It should blend with the 70s/80s look of the original trilogy. Clumsy robots with little people inside, wireframe CGI on screens...
* Darth Maul survives the battle and is killed by Palpatine.
* Clearly show Palpatine is Sidious, I mean, who is the antagonist on that film? Who's the "bad" guy?
Oh, and for AOTC:
* Anakin a little bit more serious, quiet, and challenging Obi-Wan a little bit more.
* More Qui-Gon references.
* No "Yoda teaching kids" scene. Obi-Wan figures it out by himself.
* Better paced action sequences, a better space fight between Obi-Wan and Jango.
* Again, NO C3PO. It would be ok to have R2D2, but with no flying around.
On both:
* Acting, for God's sake! Oh, and only featuring GOOD unknown actors.
* Less CGI, more real stuff.