To get it back on topic some, does superior gameness mean it's a great catch dog? Not really. As was said, dead game means the dog lost. I have been around plenty pits that were awesome catch dogs and plenty that weren't but we're super game. I've also been around big American bulldogs, dogos, and the big finder holder types that were way superior as catch dogs to game pits. I think everyone agrees that know one on here likes a big, slow, bad breathing, sloppy dog.
Good point and I agree, I don't think gamebred dogs overall make the best catch dogs, in fact depending on what you are calling a gamebred dog I don't think they are suited to be catch dogs. I would say the best catch dogs I have seen have all been quite a few generations removed from the pit. This is just my opinion.