Much of these have already been mentioned, but I'll pitch in as well.
2. From Hell
4. Stuck Rubber Baby
5. Pedro and Me
6. The Cartoon History of the Universe books
8. Safe Area Gorazde
9. Road to Perdition
10. Uncle Sam
Runner Ups: Barry Ween, Hate, Big Book series, V for Vendetta, Sandman books, Miracle Man, Preacher, Marvels, Astro City, Spider-Man Essentials #2, LSH Archives Vol. 1 and 2.