All good posts but I think we're somewhat off topic - I am hoping that the discussion is solely about what each of the different foods do and don't do in comparison with each other.
I'm glad I'm not the only guy who likes Omega One products, but that has nothing to do with the discussion! haha So while it's relevant and poignant to mention the details of nutrition, and the foods we feed our fish, the answers I am really seeking here are why I should choose say, krill over daphnia for x purpose. Or brine shrimp over plankton for y purpose. Etc.