I have watch Fight Club many times now, and even written a philosophy paper on its portrayal of mental illness. I love the plot, the humor and it's shocking contrast with some of the violent images.
My favourite thing about it is Jack's narration, and breaking of the fourth wall. I love the 'cigarette burns' sequence, where he narrates about Tyler's jobs. I guess it's just a way of distancing ourselves from the film, as Jack himself is distanced from reality.
I'm glad the film has finally achieved the cult status that it deserves. It is a masterpiece and certainly a film that everyone should see before they die. I even preferred it to the book, which is a very rare occurrence for me!