I'm loving the debate, through and through. As for the video, I wish to take nothing at all away from the presentation, since he isn't somebody I would critique even if I wanted to. However, I think the instep kick to the opponents trailing leg would have been better placed on the opponents leading leg, especially since he was moving forward and his weight was most likely on that leg...the strike would be quicker and cause more damage(again, speaking from a streetfight standpoint here, not sport karate). I wish not to sound pompous with this comment, rather it is simply what I would do. Anyway, I wouldn't go toe to toe with a boxer unless I absolutely had to. I once had the displeasure of doing so and he was agile, powerful, and quick as a cobra. All things considered though, I would give it to the Kenpo stylist due to such a vast arsenal and the fact that we use anything that works. You'll rarely see a boxer(a boxer in the traditional boxing sense, like Ali) use the legs, or go for sweeps, ow when blocking/slipping trap a limb and wrap it up for a break. There are so many factors to consider, but all things equal, training hours, fitness level, etc., the Kenpo stylist has an advantage. It's what he does with that advantage that counts.