Nice long article exploring the character of Anakin Skywalker (and, by extension, Luke) by the AP.
As a prodigy with skills beyond his years, Anakin became seduced by the thought that he was destined for greater things than the average Jedi, said Lucas pal Steven Spielberg.
“I think it was simple ambition that turned him to the dark side,” Spielberg said. “The trilogy says to me it’s the dangers of that ambition. Look, he was in pod races at too young of an age. In this case, it was sort of the evil result of ambitions, being too ambitious for his own good.”
Usually you have to depend on fringe fan sites or delve into scary fanboy message boards for character analysis like this – nice to see it mainstreamed.