Without more info I picked the AK. Each gun has its own purpose, and each is good at its own thing. But in each and every situation, you need a gun that will shoot 100% of the time, regardless of conditions, dirt, rounds fired, abuse, etc.... This is where the AK excells. There are better guns for individual jobs. But none better than the AK as an all arounder (unless you need really long range accuracy and hitting power in which case I would have picked the FAL).
But then again, I don't claim to be an expert, or know anything more that any other armchair soldier.