Both weapons are excellent tools of war. The AK, very rugged, very reliable, high caliber, adaptable.
The M16 very light, accurate, reliable, adaptable.
the AK has many variants, such as the AK74. The AK however due to its design is not as adaptable as the M16.
While it has a higher caliber, the reputation of never jamming, as well as being a favorite of ALLAH AKBAR! groups, It does not have the capability to be as flexible, other wise it would not be an AK ; the M16 as we see it today, can adapt to almost any situation, it can be out-fitted with many "gadgets" making it very effective. Thats doesnt go to say the AK doesnt have perks either. The AK is the most widely used weapon on the planet, and for good reason.
I love them both, But because i believe that its not the shots you make, but that its the ones that hit, I will rule in favor of the M16. Only because of accuracy, and slightly more adaptability, But if i had to choose a gun that just chews a bitch up, then ill take an AK. For me it depends on the particular situation.
Well thats my blabber, i have no idea if itll make sense cuz i typed this in 2 mins, but hey i got my point out there