Have you be able to choose at the beginning of the game if you want to follow the path of a jedi or a sith......with an option later on in game to continue that path or change it. The choice to kill Revan and the exile cuz they suck. The choice to start off the game from a couple of diffrent view points, one as either a True Sith plotting against the republic, the path of a New Sith, or the path of a jedi. The choice to serve or join the games main bad guy instead of automatically fighting him. Bring back Darth Sion.
"Have you come here for answers? There are none. The call of Korriban is strong, but it is the call of the dead. It is fitting you came here."
"The failure is yours, no longer does your voice whisper within my skull, no longer do I suffer beneath teachings that weaken us, and now you run in search of the Jedi. They are all dead....save one, and one broken Jedi cannot stop the darkness that is to come."