I've always thought Prince Charming in 'Cinderella' was the most boring role; I'd rather be the Wicked Witch.
Playing in front of an audience was just such a turn-on for me, and you have 200 people in the audience and it's like doing live theater. And filming something that goes to millions of people several weeks later, it's an interesting dynamic.
Actually, most things I say in public lead more or less directly to my own compositional practice, so I should be careful about generalizing lest they come back to haunt me.