I would suggest... perhaps Fablehaven? That's an amazing book. The two main characters Seth and Kendra are opposites in many ways, yet they develop in similar ways. It's great. If you don't like one, you'll like the other
Okay... I think I can do that.. (though I have to admit that it will take a long time, because I am doing drawings for some people who are getting a table at Comicon fan X) but, just tell me which characters you want, and i'll get them done