If you want quality literature, go for Slaughterhouse Five--it's amazing. Vonnegut is in a completely different class than the authors of any of the other books you listed. By the way, if you end up liking it--and I can't imagine you wouldn't--Catch 22 would be the perfect next read. You could even add Gravity's Rainbow for a nice matched set of cutting-edge modernist WWII novels.
This post was edited by JEB90 on Feb 8 2011 03:21pm