I have used both the ak and the m 16 in combat-the ak dont jam as easy as the m-16s we had at the time,also the ak shoots through brush and such better.
I have shot an enemy with a 45 and he went down and stayed down and thats from a shoulder hit-the 45 is a slow round with more shocking power-the 9mm just goes on through-guess it just depends on what you are useing it for lol.
matter of fact do you think the congresslady who just got shot in the head would have survied if that had been a 45-I think not.