YAS! Stan for King John and his giving me half a flawless username.
But probably Rowling, Shakespeare, or Fitzgerald. Fitzgerald pretty much set the entire tone for modern writers and totally redefined what the American Dream was.
Really, though, the fact that Suzanne Collins/J.K. Rowling have votes while Steinbeck, Austen, and Orwell have none...And where is my sis Pearl S. Buck? Or Ayn Rand? Or Toni Morrison?