Dream typewriter?

What is your dream typewriter? It could be anything from the common Royal QDL or any of the Olivetti Letteras, to as rare and elusive as a Royal Vogue or Sholes and Glidden. Also, what is your favourite typewriter that you own?

Edit: Just for kicks, what's your least favourite typewriter?(We R Memory Keepers and the like don't count, that's too easy)