Not arguing about the quality of meat, but how these organizations source their meats are also an important differentiation. Sure, maybe it is 100% chicken meat, but I don't particularly want to eat meat from animals that were essentially tortured and abused their entire lives, and I imagine that has some kind of negative affect on the quality/healthfulness. KFC has been accused of animal cruelty multiple times, and the videos of the factory farms they source meats from are pretty disgustingly shocking.