Available sounds can do nicely.

If you notice some good variation ideas are from clone wars that have the clash sounds twisted and more energy like. Replacing the long swings with shorter and more bassy ones can do nicely. just never use the same effect in the same duel again. add a variation to each of it and play with them.

Its the final battle. After all this duel must have an epic character even from sound pov. The original has no sound variation at all. so dull so bland. Your version have the potential to be a masterpiece :)

http://www.youtube.com/watch?v=2xbglrc8V44&playnext=1&list=PL1842DD93EB420446

Note the clashes (not the best for saber swing references)

-Angel