Choosing a title can be very hard. Here are some working or proposed titles for a few classics:
Old: Elinor and Marianne
New: Sense and Sensibility, Jane Austen ... I definitely prefer the new title.
Old: All’s Well That Ends Well
New: War and Peace, Leo Tolstoy ... It's hard to even imagine this book with any other title.
New: Catch-22, Joseph Heller ... 18 was changed to 22 so as not to be confused with Leon Uris's Mila 18, which was released around the same time.
Old: Incident at West Egg
New: The Great Gatsby, F. Scott Fitzgerald ... Part of me prefers the original title; it makes me curious.
Old: Tomorrow is Another Day
New: Gone With the Wind, Margaret Mitchell ... Glad they changed this one. The original is sappy and cliched.
Old: Something That Happened
New: Of Mice and Men, John Steinbeck ... Also glad they changed this one. The original would not have inspired me to want to read it.
Old: The Last Man in Europe
Now: 1984, George Orwell ... I like both of these.