Re: Who/What is your favorite Jedi/Sith/Other thing with a lightsaber?
I'd have several, the ones i've read about would be Darth Bane who started rule of two for siths. Or then Darth Talon who's a twilek female.
From movies Darth Vader & Darth Maul were my favourites.
And from Jedies i'd go with Kyle Katarn through the games i've played.