What Would Happen If Darth Vader Remained Good

Mace Windu and Anakin

I'm starting where Mace Windu and Chanceler Palpitene where fighting each other after Anakin figured out that Palpitene was the Sith Lord they were looking for.
So if Anakin didn't help Palpitene, Mace Windu and those other Jedi would still be alive. And the Sith Lord that was causing trouble for them would be dead.
Anakin also wouldn't of killed those young Jedi padawans and Padme wouldn't of died.
As you can see, Anakins path of hat and sadness would end there. But Lucas Film probably would of added more Sith to battle, so the next part of his new happy life will start here!
"Master!" Ahsoka said. "The Jedi council wants us to go to a Sith base on Tatoine!" "I thought that the Sith would stay away from Tatoine because of the Hutts." Anakin replied as they were walking toward their Jedi Star Fighters. They got into the cock pits and took off!