drop bear
Sr. Grandmaster
I think those kinds of comparisons are interesting and entertaining, but they don't prove a lot. What works is what you can make work in a real fight, whether you learned in a martial arts school, in the military or in prison. Competitions all have rules and the matches are promoted. People can game the outcome based on that. It is worthwhile to read what Bill Wallace, who was a commentator at the first UFC, said about why the first UFCs were dominated by Royce Gracie.
If you read books by people who have handled a lot of real violence, like those by Rory Miller and Varg Freeborn, you see that style is not all that important and martial arts schools don't really teach fighting. They may teach techniques that are useful in fighting, but real fighting is more about the mental aspects.
If sport is your interest, watching competitions generally only proves who has best mastered the rules of a given competition.
I read a study that analyzed 200 videos of actual street fights. The average length of the conflicts was 47 seconds and few lasted over a minute. If there was a KO or TKO, it generally happened in the first 10 seconds. If that didn't happen, it generally went to the ground. That is nothing like most competitions I've seen.
MMA fighters have handled real violence as well though Tim Kennedy, Baz Rutten. And they say training and systems do matter.