I think the Anakin's story in the prequels should have been more like this:

Episode one: Perhaps Obi-Wan has a pupil who was a teenager, he would be difficult and problematic showing signs of the Dark Side, Palpatine would be a political leader rising in the Galactic Senate, Anakin would be Obi-Wan's closest aid and buddy...he would be a Jedi but be wise-cracking and humorous (alike Solo). Anakin and 'Ben', as Anakin calls him save each other's lives many times during the Clone Wars, which runs though this film & the next.

Episode two: Obi-Wan's pupil would be an adult and a Jedi, but his decisions and manor would be questionable he is at odds with his Master, Anakin would be the only Jedi who could calm situations and connect with the young Jedi.

The pupil would have some bonding with Palpatine and the audience would have no confusion where his destiny lies.

Jedi begin to get picked off one by one by a masked Sith dressed in Black and soon everyone knows the name of the Sith Assasin...Darth Vader

Episode Three: Palpatine has grown to the height of Supreme Chancellor and is untouchable, he has surrounded himself with undesirables It become apparent the has a henchman...Vader

Vader & Anakin find themselves in a duel, Vader unmasks to reveil Obi-Wans apprentice, which they already suspected, we don't see the outcome of the battle but soon after we do see Vader in the presence of Palpatine in a 'everything is progressing as I have forseen'

By the end of the movie Vader & Obi-Wan duel and Vader is defeated, badly maimed etc, etc....needs life support

......now the only things that conflicts is the kids....and Ben's conversation with Vader on the Death Star