This is probably rare for people of my generation, but it was Ian Fleming's novels that led me to the Bond movies; not the other way around. Because of that, my fondness for the literary Bond has always colored my opinions about the various movie versions. Like everyone else, Connery will always be my favorite, but I'm one of the few who actually prefers Timothy Dalton to either Pierce Brosnan or Roger Moore. Especially to Roger Moore, who dislikes For Your Eyes Only; the only one of his Bond movies to come anywhere close to capturing the tone of Fleming's books.
My favorite Bond novel is the first one, Casino Royale. The reason I love it is its last sentence, so I won't blow that for anyone who hasn't read it, but I'm thrilled that we're finally getting a real adaptation of it (make sure you watch the new trailer in the link) after two crappy ones. And I'm thrilled that the film-makers are giving Bond his edge back with Daniel Craig. It's going to be a long wait until November 17th.