A Bear Grylls vs. Les Stroud boxing match would be interesting. Mr. Stroud looks like he has like 40 lbs on Grylls, but Grylls was part of the British special forces. I'm sure he has a way to take down a dude heavier than him.
I'm trying to think of a fitting opponent to Kamina. Somebody of such indomitable manliness and spirit that they could hope to hold a match to him.