it has to be Kyokushin karate. not to diss other manly arts like boxing and judo, but in koykushin you score half a point for making your opponent show obvious pain and a full point for knocking the other dude down.

And that's just the point sparring they use in the first rounds of the tournaments to thin out the ranks. after that it's all out kumate.

to be fair they don't allow face punching, but that doesn't mean they just love tap with the foot like in tae kwon do

http://www.youtube.com/watch?v=ujMgPDUGYUs&t=4s

they knock people right the fuck out in the most epic way possible.

other styles may be better for other things, but for all out manning the fuck up Ultimate Truth Fist takes the prize and fucks the cheerleaders.