1. Dooku had more time to practice the art of lightsaber dueling. Kun was a saber prodigy who defeated his own master as a padawan. I would give the edge to Kun because of his unique blade and therefore, unique style.
2. Dooku didn't really show as much with the force as Kun did, but aside from the amulet blasts, Kun didn't do anything relevant to a versus fight. Don't know how this one would go.
3. Kun froze the entire Senate hall with a sith spell. I would call it a stasis field.
I'm not too sure what Dooku did because I know less about him, but his force lightning and lightsaber abilities were very impressive.
1. Exar Kun pwns him; he was greater than the guy who was able to stalemate a powerful jedi master who also happened to be a war hero/champion, and who was being driven by the darkside, an this was while said person had been cut off from the force and out of practise for 20 years. He also happened to be a saber genius; he created the first and most unique saber staff ever, and was able to wield it to great effect - quite easily able to defeat a 600 year old jedi master with it.
2. Dooku won't be able to defend against amulet blasts.
3. Kun froze the entire senate, choked Odan-Urr like he was a b1tch, mastered sith magic in like two seconds....
Originally posted by Lightsnake
While Dooku doesn't have much a shot, here, Exar beating Vodo's hardly a great mark, considering Vodo's utter reluctance in fighting him.
Actually, Vodo was described in the Power of the Jedi Sourcebook as being "no match" for Exar Kun, and tDSSB says that "Master Vodo did not have a chance". So, it really doesn't matter if he wasn't fully willing to fight (can I see the quote, for reference), because he'd be tooled regardless.