About the scene where his is named Darth Vader, everything leading up to that was great, BUT, Anakin was way too submissive, he was just "What have I done?" "I pledge myself to your teachings" and that was it!
There shoulda been a fight between the two or something, Sidious shoulda had a round against Anakin to break his will....
Forget about al lthe Padme nonsense! No idiot would jsut bow down to a sworn and untrusted enemy to save your girlfriend from a scanty vision.
We are the music makers, and WE are the dreamers of the dream. -Willie Wonka