Greg, my take is purely unscientific, really only taking into account the level of feeding that takes place and by whom:
The Purina Game Chow seems to get the widest range of response, meaning it appears that both catfish & bluegill eat it, if bass are in on it, I don't see it.
With the Southern States I see lots of catfish to a few bream.
The grass carp LOVE the Southern States but not the Purina.
A Purina rep was in Boss Brothers a few weeks ago for a "seminar" on deer feeding. I asked him about the fish foods. His response was that the catfish food was for CATFISH. The Aquamax (which I expected him to push - $$) was more for commercial or very highly maintained environs, in the end he said the Game Chow was my best choice, by far. I have found his advice to be correct.
I have not tried the Aquamax.
