Twilight vs. The Hunger Games vs. Harry Potter

As an author of YA fiction, I'm always interested in what makes a particular book or series a success, and I've come to some conclusions.

I read the Twilight series by Stephanie Meyers because of it's extraordinary financial success, and the almost immediate movie options. I wanted to see why kids liked it so much, and I'm not talking about follow the crowd kids, I'm talking about sane and sensible kids headed for college on work scholarships.

After reading the books - not my favorite series, I...