Okay this is a great topic.....
First and foremost i would scrape any and all elements of EP 1 Period!!!
back when i was a kid (derrrrr) and first watched SW (ANH) and hearing Obi Wan talk about the clone wars and the Jedi and i quote... "That's what your uncle told you. He didn't hold with your father's ideals. Thought he should have stayed here and not gotten involved."..... sounds to me Anakin would have been 16/17 teen and Owen would have been 20 when the
clone wars begun and would have joined the resistance alone side the Jedi and fight the clones, (but the jedi would not have been Monk like beings, instead would have had family's and so on)
Anakin would have joined to fight against the Clones and would have proved him self a great fighter pilot... surviving a few awesome battles.
"He was the best star-pilot in the galaxy, and a cunning warrior. I understand you've become quite a good pilot yourself. And he was a good friend. Which reminds me..."
this line tells me that That Obi Wan heard of these battles and eventually would have met Anakin before a major battle campaign and sensed some within him in the force...
after yet again winning or losing this battle, Obi Wan would have approached him and explained why he was doing so well as a fighter pilot. and would have begun his training towards the end of EP 1...
"I have something here for you. Your father wanted you to have this when you were old enough, but your uncle wouldn't allow it. He feared you might follow old Obi-Wan on some damned-fool idealistic crusade like your father did." through out the wars Anakin would have trained to become a Jedi and would have met and befriended many people and one such person say a beautiful women from Alderaan, and during times of R & R he would taken her back to met Owen and then would have started there family back on Alderaan, thus have given birth to Luke and Leia.
"General Kenobi, years ago you served my father in the Clone Wars. Now he begs you to help him in his struggle against the Empire."
Bail Organa would have been a high ranking officer in the wars and would have set many missions for the Jedi (Remember Jedi are knights when i think of knights i think of the round table) thus making Obi Wan and Anakin have some ties with Alderaan and doing a mission or 2 there. all this to happen in EP 2.
"A young Jedi named Darth Vader, who was a pupil of mine until he turned to evil, helped the Empire hunt down and destroy the Jedi Knights. He betrayed and murdered your father. Now the Jedi are all but extinct. Vader was seduced by the dark side of the Force."
so in EP3 we could have finally seen who was behind the Clone Wars and met Palpatine as a Sith Lord, Palps would have heard about Anakin through out the wars and how much damage he was causing, and sent his apprentice off to cripple him, then finding that he was so strong in the force he wanted him for himself and ordered the killing of anakin's wife and young children, hoping to turn Anakin to the dark side with the pain of his loss and revenging their deaths and killing the apprentice not noting he was one of Palps's agents...
thinking that it was jedi's that killed his family and setting out to destroy them all. then when he finally caught up with Obi Wan who tried to help Anakins family only able to save the kids and sensing how full of the dark side he was did not tell him that they had survived and tried to help him back to the light side but ended up dueling it out with him like so at the end of the now EP3
Well that's what i would have like to have seen.....