The Best Vampire Novels Of All Time?

I am compliling a list of what vampire lovers believe to be the best vampire novels of all time. The results will be published on a website I am creating on the mythology of vampires. In order to qualify, the novel must have (a) vampire(s) or vampirism as it's PRIMARY characters/theme. Please list the one, two or three best vampire novels you have ever read. Please include Title AND author and if you wish a brief synopsis and/or the reason you feel it is best. Thank You!