I have read this thread before when it popped up and I'll have to agree that no 2 people will agree on a brand of anything. People should buy what they can afford and if they can feed the best brand. Chickens should not have to eat better than people do. Soy is promoted as being more healthy for people nowadays. Meat protein was taken out of many chicken feeds due to the mad cow scare in the 90's, and I just read in this month's The Poultry Magazine that one way salmonella is transmitted to chickens through use of animal protein. I feed Purina Start and Grow, but I started collecting labels off of every brand I could find like Dumor (TSC), Nutrena, and my Purina and they look mostly the same with a few slight differences.