Ray Park is a master of Wu-Shu, which is not a legitimate fighting style. It's actually a form used for shows and is relatively new to the "martial arts" world. It's very flashy and fun to see, but it's not the best fighting style.
You mean Ray Park assissted Lee on Episode 2.
And to compare the Lee and Park is a bit unfair. Lee is aging and was using a completely different style (much more of a fencing derivitive than a martial arts form) than the far more spectacular and physical Park.
(Though, personally, if Darth Maul and Count Dooku got into a fight, I got my money on Dooku walking out in 10 minutes or less.)