I feel Anakin should've been introduced as a teenager and it should've been the start of the clone wars. The film should end with an army of Jedi taking out the droids.
Ep 2 should've introduced an army of sith and this is why the Jedi resort to using clones. No Kamino bullshit and Darth Maul should have survived. Qui-Gon should also have survived until Episode 2. In the end of Episode 2, Maul is killed and another sith assumes second in command.
In Episode 3, the second in command guy (who is BRIEFLY) introduced in Episode 1 should be killed at the begining, swapping him for Dooku. Grievous should be Maul rebuilt. In the end, Anakin should send an army of sith to the jedi temple. Hears that need reinforcements and arrives with the clones. He kills everyone. First the Jedi and then the Surviving sith because the emp said they're too week.
The Sith Vs Jedi should be a lot like the Old Republic trailer that was released and we should see Anakin killing everyone.
Anakin should have been Joaquin Phoenix, no Jar Jar or at least his voice should have been low and he should not have been stupid or have had bad grammar.
Anakin should not have built 3PO and Owen should be introduced in Episode 1 and he should be jealous that Anakin can leave but he can't.
Yoda should have looked like Yoda did in ESB. Him as a CGI is fine, otherwise too many CG aliens.