Well, I'm probably not going to play the game, but the Sith Empire sounds more appealing. From what I've read and heard, you can play "paragon" or "renegade" (to use the phrases from another game) on either side of the conflict, and being the Good Guy On The Wrong Team? is not something that many games allow you to do.
Also, I love the Inquisitor's crazy armor designs.
Also, I love the Inquisitor's crazy armor designs.