I'm a big Nabokov fan. His short stories are great and Invitation to a Beheading is one of my favorite novels.
I like postmodern fiction as well (to which Nabokov had some contributions later in his career) - David Foster Wallace, Thomas Pynchon, Neil Gaiman, etc.
I enjoy reading people's first novels for some reason. Most recently, The Manual of Detection by Jedediah Berry was a very fun read.