The Dark Lord of the Sith, Lord Darth Vader, was the most known and most feared pilot in the galaxy and was never defeated in space battle.
The Order of the Sith is the Order with the longest history, and such famous Dark Jedi as Darth Vader and Darth Bane are just a few examples of the awesome history of the Sith.
The Sith were led by the Sith High Warrior, who is overseen the Sith Houses of the different Clans in the Dark Brotherhood.
The rivalry between the Siths is fierce, and so it comes, that we face Order wide wars from time to time, in which the Sith Houses fight against each other to see which is the strongest of them.
Platforms used: X-Wing, TIE Fighter, X-Wing vs. TIE Fighter, X-Wing Alliance, Freeworlds.
For the entire history of the Sith please go to, History of the Sith