You know what I wish canon had given us? Obi-Wan going, at least a little bit, Dark Side for Anakin. You know. (I mean, I think the RotS novelization implied that Obi-Wan would go against all his Jedi principles for Anakin, but saying it is one thing and doing it is another. Plus,
movie canon.)
It is probably not a coincidence that one of the earliest scenes in mind for "The Most Dangerous Man in the Galaxy" (should I ever get around to writing it *rolls eyes*) is the one where Obi-Wan pulls a lightsaber on Yoda when he sees Yoda. Or that the Clone Wars spy story has Obi-Wan going psycho on a couple Jedi when they threaten Anakin.
And, of course, it's, uh, practically canon that Anakin starts murdering people whenever someone he loves is hurt/threatened/killed. In movie canon, see: Sand People, Jedi Temple. If I'm not mistaken, there are a number of cases in the EU as well.
In other news: Supernatural. Shiny.
( Cut for brief spoilers that were, like, spoilers a year ago, but you know, to avoid getting hunted down. Also, this is probably old news in the SPN fandom anyway. )