With this many martial artists, I await the League of Assassins Tournament Arc that seems to keep coming up in the comics.

Uatu the Watcher can referee the 1968 totally-not-Mortal-Kombat.

Also, since 1968 is the year [url=https://en.wikipedia.org/wiki/Mister_Rogers%27_Neighborhood]this show[/url] first debuted nationwide in the US... my money is on Mister Rogers [url=https://www.youtube.com/watch?v=sTpW81xguME]winning the tournament[/url].