From that angle, Potter has the mundane but easily approved message, "Good is better than evil," while Twilight... I think I'd have to read it to really say, but it's certainly not as easy to pinpoint. There's your answer right there!

"I don't know what this means on a deeper level, so I'm going to shit a square kitten on the Internet and forbid my kids from reading anything but my old Bobsey Twins collection."