Glenn, I agree with you very much. The more 'primal' (for lack of better words) should be key. However, some soft spots are easy targets, such as the nose or solar plexus. A running and diving tackle, much like a football tackle leaves a lot of time for you to become a target. A bear hug and wrestling style toss IMO would be much more effective. Again, time and place While certainly not as crucial a situation, I encountered some of these things as a bouncer in a college bar. The difference between a guy who knows you are there and a guy who doesn't when you try to grab them up is very different. I think a huge key is trying to disrupt their OODA loop. Regardless, aside from avoidance all together the best bet is some cover and a gun.
"In 1968 for my senior field trip I was sent to RVN"
"It is far more important to be able to hit the target than it is to haggle over who makes a weapon or who pulls a trigger." -Dwight D. Eisenhower