I'd go for the blaze. But that is because im a lonewolf and like to snipe around, and scout around cities before engaging with the Hunting Scope, and you have the AKU that could keep in your bag, and is still good for close combat. This is my playstyle and my character has not been killed for over a week, in medium to high populated servers. You could go for the AKM, but in my opinion it mostly does not matter wether you have a AKM or M4 to keep you alive, its about who detects who first in general.