I've replaced Nautilus with PCManFM on Ubuntu 13.04, because I want to completely get rid of Nautilus.
I don't like having Nautilus installed only for painting a wallpaper. Applications like Firefox or Transmission open Nautilus when opening a directory. Uninstalling Nautilus fixes that for me.
I only want basic wallpaper functionality (i.e. no black screen), better if it honors the System Settings wallpaper. I can live without the Desktop icons and stuff. What's the best way of achieving this?