Not sure why such a big deal is being made about Kao mastering most/all the lightsaber forms, as if that puts him on Jinn's level or even necessarily close. Even worthless serfs like Master Kavar and Zez-Kai Ell ("who?" - exactly) mastered most/all of the forms. Yet obviously, Qui-Gon or Obi-Wan would trash those clowns in lightsaber combat.
In this fight, Kao may indeed have the advantage in technical knowledge with a blade. However, this wouldn't be decisive at all. Because as has been mentioned, Obi-Wan fought Qui-Gon Jinn to exhaustion many years pre-TPM (Jedi Apprentice:The Threat Within), despite Qui-Gon Jinn having considerably greater technical knowledge with a saber. For (pre-)TPM Kenobi, his technical knowledge doesn't seem all that big of a handicap at all. At just 13 years of age, Kenobi was capable of making Xanatos (said to have "mastery unsurpassed in his class" and was more than a decade older than Kenobi) lose his balance through his "ferocity" and "gracefulness". There are also plenty of examples of high potential characters defeating/matching opponents who have far more experience and knowledge of the lightsaber forms and techniques. Kenobi did it with Maul in TPM, albeit with a rage boost. I certainly don't see Kao pulling off the same thing, as he got overwhelmed by even Return Malgus eventually, who is a gnat to TPM Maul.
Originally posted by nfactor1995
I thought KOTOR was stated to be the prime of the Jedi Order
According to the KOTORCG, yeah. But KotOR=/=SWTOR. There's 300 years of peace between them. And IMO, PT has a stronger competing claim, as it seems to have significantly better high tier duelists, so I'd put that over KotOR. GL also notes that PT is the Golden Age of Jedi as well, I believe.
Now, I suppose the average run of the mill Jedi in the KotOR era might be better, because they're literally fighting constant war, but the constant warfare would also logically have the effect of killing many potential high tier characters before they have the time to really grow. And a comparison of the best duelists in the KotOR and PT eras also comes out with only one winner.