Besides a small batch of brass cases, boxer primed Lapua 7.62×39 I came across at an auction once..which was really good stuff..
I dont see much, if any difference in any brand...Wolf, Tula..etc..any that comes from the former Soviet Block. Its all pretty much the same, by design.
Romanian Hotshot has a bad rap..but I didnt notice it being any different either.
Yugo, and if you can still find any, East German surplus, while corrosive (not an issue at all with a Soviet block import AK variant..they all chromed on all the important areas) was some very good stuff, and very very cheap..back in the day. (Like 80 bucks for a wooden crate with 1400 or so rounds...been a while)
Its an AK...or 7.62x39 chambered weapon. Those terms and accuracy do not go together.