Jedi with anti-sith abilities

I believe it's because none of the Jedi were anti-sith. We would need more from the galactic civil war SWKOTR timeframe, when they were actively training to combat the Sith. Whereas those characters on the sith side that were mentioned were actively training to combat the Jedi. Plus, two of the toons you mentioned are the same guy. Vader has his because he actively hunted the Jedi. There was no Jedi, that are in the game, that did this. Mace had one encounter with the sith, and lost. If you read the book, EP played him the entire fight in order to secure Anakin's fall to the dark side.