John Amato over at Crooks and Liars has a few choice words about the comparison of President Obama and Buffy the Vampire Slayer:
If you're going to use Buffy as a model to help Obama, then you really should know what you're talking about. First of all, Buffy didn't kill Darla, Angel did, as he helped thwart Darla's plan to win Angel's heart again and bring him back to "The Master."
"The Master," was an ancient Vampire with incredible powers, but was stuck in a mystical force field after he failed in his attempt to open up the Hell Mouth many years ago. He was the Big Bad in the first season. Buffy was already the Slayer before she went to Sunnydale when the series started.
I know Joss Wheedon might differ with my take, but it wasn't until she confronted The Master in the final episode to fulfill a prophesy that she was able to conquer her crippling fear of him. And it was that fear that was holding her back from truly blossoming into the most powerful Slayer of all. At one point she was so terrified of the Master that she wanted to quit being a Slayer altogether, but she finally accepted her fate and decided to face the Master in the end.
If Obama were truly a liberal transformative hero, but fear was holding him back from becoming the ultimate progressive warrior, then I could sort of buy the comparison. I don't see that, do you?