I carried the M-16 for a while and never had any problems with it jamming. With that said and having experience with the M-16, M-14, AK-47/AKMand M-1D, if my life was depending on it I would choose the M-14. The AK may be simple to maintain, but I was never impressed with it's accuracy.

If I had my choice of any weapon, I would take the M-60E3, even though it isn't a production infantry weapon/rifle.