The best saber fighting for JK2 (as I was hoping they would have implemented, though the current system isn't bad) would have been much faster paced... I mean really, there shouldn't even BE a "heavy" "mid" and "light" style... a lightsaber cuts through anything it touches; it doesn't matter whether you swing it slowly and wide or not.
The system I would hope for would simply be a 1-touch slice-off combat with many many blocks and extremely fast paced action (read: 2-3 strikes per second without having to spin in circles to achieve it)
Of course, this system will eventually
come along... but I doubt it will be with this engine.