Thank you for the detailed analysis OP.
I have not read the books
or seen the movie. For whatever reason, I gravitate
away from hype. But the fact that you make deals with your sister is intriguing, and I'm sure it results in great learning experiences for both of you.
I have no factual foundation to stand on when it comes to Twilight. It's too mainstream. In fact, it took a while before I decided to read the Harry Potter series because too many people liked it.