I had a Norinco. It did not compare in quality to the Polytech 'Legend'. Not by a long shot.
I got rid of both my AKs after trying an AR15. The Aks are 100 yard guns.. and 5" groups at that range. An AR will drive tacks at 300 yards.
I do wish I had kept one of the AKs, though. I sold one with three 1200-round crates of Steel-core ammo 32 30-round East German mags with the rear rib, a 75 round drum, and three changes of furniture. It was an under-folder. Price: 350.00
None of the AK-47's were well finished including the Polytech legend. They all shot ok, and were a little more accurate than most people say.
All of my AR's were Colts and they were all beautifully made, totally reliable and very, very accurate.
As far as I am concerned there is not contest. I would take the AR and run.
If you want a target gun, buy a decent bolt action rifle. If you want a firearm that will function with a bunch of crap in the receiver, build yourself an AK (or an FAL :>)...
;>)