Sasuke's susano'o differs from both Itachi's and Madara's in that it uses a bow for long range attacks instead of a sword. I believe that Sasuke will mostly use his abilities with amaterasu and enton for long range and defensive purposes. If Madara can destroy reality with his PS slashes then Sasuke can erase it with his enton abilities. He will be able to sweep over vast areas with with his enton, leaving them only accessible to rinnengan and fuinjutsu users.