When I voted I made no distinction between SHTF and TEOTWAWKI type situations. I took it as the balloon has gone up, the elephant is on his way and you need a gun.

In my case I chose the AR 5.56 for one reason only, logistics. I have the most spare parts, magazines, and ammo for it. Assuming the military is involved which I think more likely than not, or even the police. Brass will remain available even after the event we're talking about, whatever it may be.

Thinking it'll be a while before wally world starts selling ammo again, and that my internet connection is long gone, I'll have to make do with what I have on hand. I wouldn't call it an ideal weapon, but I'll be able to keep it going longer than any of the others and it'll serve well from close to mid range distances.