Yeah, they are another highschool era favourite, though I didn't read Sabriel until the end. I really loved the Accross the Wall short stories too, but Lirael is definitely the highlight for me. Tremaine (The Wizard Hunters), and Lirael are both characters that start off semi suicidal, but not so much from depression but from... ambivalence? Not really the right word, but the multifaceted and often conflicting nature of both characters really resonated with me then and still do.
I also need to reread Patrick Rothfuss' books. I read the first book, but the 4 years between release dates, and the yet to be released final book makes me think I should put that off until it finally comes out. I'm packing up my room in my parents' house and seeing all the books again makes me want to do so much reading. Diane Duane is there and was an anchor of my elementary school days (and still has yet to finish the series 32 years after the first book!), as was Tanya Huff and Mercedes Lackey (until I realized every book she has written is pretty much the same with different characters).