If we're talking about the basic satin finished Blackhawk wrench that has been rebadged from Husky to Master mechanic, I don't think you can honestly compare those to any variation of Matco wrench. If we're trying to compare the older US made Blackhawk full polish combination wrench sets to Matco, then there may be some similiarities like they're both shiney. You would probably have to do a case by case comparison and it would probably end up being based on personal preference in the end. Things like fit, finish, feel, balance,and price are opinion based and one's man's trash may be another man's treasure. Some of Matco wrenches have modified open ends to prevent spread and to grip the fastener better. Matco has a wider selection of sizes available in sae and metric. In the end it's about how the tool worked for you. Did it perform at the level you expected, or did it cause you more grief by breaking or damaging the fastener?
By the way, if you're comparing Blackhawk polished gearwrenches to the Matco proswing gearwrenches, there are only minor differences aside from the open end.