Well, lately I have come across a variation of the following sentence a lot:
"Harry Potter is better than Twilight because Twilight gives a lot of bad messages"
I won't deny the message given by Twilight is an awful one and easy to spot, but Harry Potter also has its share of bad messages, and whats worse is that it is conceived between lines. There's an extense debate among psychologist on the validity of subliminal messages, but that I will not discuss. Following I will list, in my opinion, the (bad) messages each book gives.