Okay, I'm resurrecting this thread, as I thought it was great. So there. 
Also, I thought of something to make the Padme character much more interesting. What if she is also fighting on the side of the Jedi in the Clone Wars? Let's face it, in the PT she's no Princess Leia! So:
Originally posted by: auraloffalwaffle
Obi-Wan comes to Padme to tell her what has happened. At first she is furious with Obi-Wan and accuses him of killing Anakin because of jealousy but, eventually, comes to accept that he had to do what he did. Now, I would like to see, over the course of this story, that Padme and Anakin live together until he goes off with Sidious. A few months after he goes she finds out that she's pregnant. After the "death" of Anakin she returns home. Shortly after that, we hear of Imperial forces, led by Lord Darth Vader, scourging all systems of all remaining Jedi and their relatives and known supporters. Obi-Wan comes to her just before Vader does. She has had twins, a boy and a girl. Obi-Wan withholds from her that Vader is Anakin. He tells her that Vader will kill her and her children if he finds them. He convinces her of Vader's ability to sense the children and persuades her that, if they were separated, it would make them harder to find. He tells her that Anakin had a brother and he'll take one of the children to him. He tells her to take the other child with her to Alderaan and seek refuge with the Organas and, if anyone asks, the Organas should say that the baby is theirs. Padme will then have to make the agonising decision of which child to take with her and which to send with Obi-Wan. Well, we know the outcome of that one.
So, Obi-Wan seeks out the Lars family and, eventually, tracks them down on Tatooine. He gives up Luke into the care of Uncle Owen and Aunt Beru and then puts some distance between himself and the homestead. Padme and Leia settle down with the Organas on Alderaan. And, for a few years, that's it. Then, I think, either Vader or some other Imperial officials find out who Padme is. Leia is protected by the pretence that she is the child of the Organas. Padme refuses to cooperate and Leia sees her mother get killed and that sets her on her course to become leader of the Rebellion.
Now, that's all well and good, but we need Padme to be a more interesting and strong character. So, how about she's part of the forces fighting with General Kenobi and Anakin? She falls for Anakin and they get together and she marries him. He fucks off with Sidious. She finds out she's preggers and, because she can't fight, she goes home. She has the bairns and then starts to prepare to go back to the war. Before she leaves, the Clone Wars end with the Empire victorious. Lord Vader starts his cleansing of the Jedi Order. Obi-Wan comes to Padme and he goes off with Luke to track down Anakin's relations and Padme goes to Alderaan with Leia, putting herself under the protection of the Organa household. Unfortunately, you can't keep a good girl down and she joins the Rebellion. It is because of this association that the Empire track her down, along with her associates, and kill her. Leia grows up with this and becomes the feisty freedom-fighter that we know and love!
To pick up on something another poster said, perhaps this could be the reason for Alderaan becoming (at least as far as the Empire could see) a pacifist planet. Maybe the Empire's campaign against the Rebellion there and subsequent retribution against the citizenry would turn them right off fighting and declare themselves peaceful.
Oooh! How about Alderaan being a pacifist planet all the way through the PT and the Organas are the ambassadors for peace to the Empire? Padme disagrees with their pacifism and goes off to fight with the Rebellion, leaving Leia with the Organas. She returns frequently to spend time with her, but she doesn't want to lead the Empire there so always makes short visits. After a few years, the Empire latch on to her. She thinks she's given them the slip, comes back to Alderaan but the Empire catch her. Leia sees her led away, Padme makes a break for it and they shoot her. Maybe Vader could have dispatched the squad to catch her, telling them to bring her to him alive. When the commanding officer returns with a corpse, we could see some ESB-style discipline from the big guy.
Thoughts?