I've read so many books I can't seem to find which I would give the status of favorite.

Every single one of them has kept a specific image in my mind from the time I've read them, from the mood I was in when I was reading them, or the memories they bring back, even the technical books.

Paul Graham wrote a related article about this: http://paulgraham.com/know.html

For the sake of arguing, I wouldn't put any technical/programming book in my favorite list, it would be equivalent as putting my old school maths book in my favorite list. Those books are nice to have as a reference and very enjoyable but not the kind that moves you or transfer you to another dimension of yourself.