Lion, I feel like you're pandering.....
The Count of Monte Cristo is my favorite book of all time haha. Literally just lent the abridged version to a good buddy of mine who finished it last night and loved it. I have yet to read the unabridged version, but that's getting done by the end of the year.
I think the Dark Tower is quickly surpassing the Millennium Series as my favorite book series to date. The character arcs of Rolland, Jake, Eddie and (now) Sussanah Dean are incredible. The villains are epic. And the deeper you get into the story, the more questions you have than answers, which has been captivating. It's uncanny. Stephen King is by far my favorite fiction author and this may be my favorite work by him, which is saying something, considering I have over 25 of his novels.