Over the hundreds of thousands of years that the Sith have existed, countless individuals have risen to become Sith Lords, numerous Lords have risen and brought darkness to the galaxy only to be thwarted by the hated Jedi Order and heroes of the Republic. They are the villains, but they are as important as the heroes - without darkness there can be no light... But who is the greatest Sith ever? I've done a fair bit of research, I re-read the books I owned, I watched the movies and I played the games, and after all that I've finally been able to compile what I think is a good list of the 10 Greatest Sith ever to have lived. Although this list is my opinion those mentioned are truly some of the greatest force users in the Star Wars universe and I'm sorry if any of your favourites didn't make the cut.