Things are waaaaayyyyyyy more complicated then us in here think, about any music, not just Balkan or Western.
Not necesarilly the Big3 have the better styles then any other brand, there is many more arrangers.
The Alpha arranger thats coming out its gonna beat the hell out of anything existing for now including
MS and AUDYA but technically speaking, would that make it a better arranger for you or me? NO!
Actually it is out but it'll be harder for you guys to get more info on that, hard to find in English.