Hmm, favorite books huh? Well I like some of the star wars books, mostly the republic commando series. I'm not sure why, maybe it's just fandom for star wars or maybe it's just because I liked the game so much but I do like them. Also Death Troopers was pretty good, I like it cause it doesn't really...fit with the genre, mainly because it has zombies but because it does it's also pretty original. Same kinda fandom goes for the Halo series of books that my friend introduced me too.
I've also recently been reading Battle Royale, I'm not very far in it but I do like it. The books plot itself is kinda sick, a government sponsored Deathmatch between a class of junior high kids all on their last year for no other reason then....the government can I guess or they try to say it's for testing purposes. Despite it's kinda disturbing nature the book is actually good and fairly long with small print, and it does have it's touching moments as well as bringing up the question of "Could you kill your friends so you can live".
I'll also read anything by HP lovecraft and probably the same for HG Well's, as well as any good sci-fi books in general.
Also, I'm not a big Harry Potter fan myself. I mean it's okay but...I just can't read the books for some reason