All the appropriate things for a movie like this
If ANYONE plans to do a movie borrowing characters from other movies, this movie, part 1 and 2, are the role models to follow.
I was very pleasently suprised by the respects you paid to both artists of the two characters. You made neither look > or < the other. The option of choosing who won was PERFECT to please all audiences. Both of the characters preserved their original attitudes, SS being the intrusive murderer/hero, XX being the kung fu badass, and you could see how you made their fighting styles differ, from agile and artful to brute and slow.
I gave both parts a 5, because that is the only way us with lives can make any impact.
I also chose XX to win, because the SS author is a jerk.