For real...I haven't been seriously hit in the nuts in about 3 years until about a week ago when I was drunk with my buddies and one of my friends threw a football that I wasn't expecting and it hit me flush. I was down for the count for about 15 minutes.
To answer the question I think swarmers do well against counter punchers. I guess anyone with a good chin and high work rate would do well against them...or someone who fights well inside and can smother their opponents punches. Picking your spots and making them count also helps.
just today i sparred with my friend first round we went slugging and i would win the exchange but when he started to counter punch i couldn't do anything but thing that worked the best was at least 3 - 4 punch combinations all straights. since the counter puncher looks for an opening after a punch he can't do it when there are so many swarming him . :boxing: