Well, seriously now... my favorite book character would have to be... let me think... maybe Viviane from the Enchanter by Rene Barjavel. A huge, great French author that was never translated into English for some reason...
raskolnikov is a good one, my actual favorite is in J.d. Salinger's Catcher in the Rye....Holden Caulfield
each for very different reasons... Spud - Trainspotting Samwise Gamgee - Lord of the Rings Nanny Ogg - Discworld novels
D form Vampire Hunter D. One thing that I don't like whit this guy thought is that he is to macho some times.
From Katherine Kerr's books my favourite has to be Rhodry Maelwaedd and his reincarnations. Ah well, and Evandar of course.
Shiatan-- Zillah is an amazing character! Lost Souls is one of the best books I've ever read. But for myself, my favorite character is Ayla from Jean M. Auel's "Children of the Earth" series.
Oh my god... melts my heart. I have so many of them but I will start with a few Charlotte Doyle from The True Confessions of Charlotte Doyle Lily from Ten Thousand Lovers Dave Eggers from A Heartbreaking Work of Staggering Genius
My fav book people are Susan from the Discworld books and Thursday Next from Jasper FFord's Bookworld.