Edit: Apparently multiplayer is where the real fighting happens. I heard this game has the best lightsaber fighting of any Star Wars game ever.
For Star Wars: The Force Unleashed on the PlayStation 3, a GameFAQs message board topic titled "What SW game has the best lightsaber.
once and for all - what are the best Star Wars games of all-time? get all kinds of cool lightsaber and Force-power stuff to mess around with".