What's the verdict? Is he the penultimate villain in the SW universe, or is he the tragic hero, or what? Even after all the horrible attrocities he committed in ROTS I still can't bring myself to consider him the 'bad guy'. He's rebellious, conflicted, and misguided, but throughout the movie all he wants to do is do what's right - end the Clone War, bring peace to the galaxy, and prevent his wife from dying. All noble causes, yet all the while he was perverted by Palpatine's poisonous spiels. It's because of his close friendship with Palpatine that he becomes distrustful of the Jedi Order (would he have felt the same way if Palpy didn't feel so threatened?) and is quick to accuse anyone of not honoring the Jedi Code, or asks him to do something that is dishonorable. I think his heart is in the right place throughout the movie, and even after he lays waste to the Jedi Council and the Separatist group in Mustafar, you can tell he feels much sorrow and remorse for what he's done, but he knew he had to do it, believing it was all in the name of peace and justice. Palpatine has made him uber-paranoid and cynical, he choked his own wife for crying out loud. But Padme forgave him, as she could sense that Anakin possessed a good soul. When Anakin learned of Padme's death we all knew that he was screwed, he was forever bound to Palpatine's servitude. And the Return of the Jedi line, "I must obey my master", is all the more profound and meaningful.