#1-"They" only bring back the AWB if WE let them-don't focus on defeat!
Now-
AKs are all generally reliable. I have a Romanian, and it works, although the furniture looked like it was made by a blind monkey in a hailstorm-at night. The trigger 'slaps' hard, and it's not pretty, but it works. I'd pay more for an Arsenal if I were 'into' AKs, but I'm really not.
SKSs are great guns, especially for younger shooters and ladies. The Yugo ones that you'll see the most of are generally in very good shooting condition, and shoot pretty well. MUCH less recoil than the AK, although they fire the same round, because of the weight and stock design.
Depends what you want the rifle for-both make nice range toys. I'd rather have the AK if/when the zombies finally come for me....
Larry