I have eaten KFC exactly two times in the past 10 years or so. Once for a reminder of how revolting their fried chicken is, and once to try their grilled chicken.
Crap food at any price.
As for the treatment of animals, unless you raise or hunt your own you have little control over how they are treated while alive. OTOH most people can't live on Kobe beef and venison. I find from time-to-time that I will think about the slaughtering process and it grosses me out, I will go weeks without touching red meat, pork, or chicken.
Mistreating animals, even if their only purpose if for food, is immoral.
The Meatrix Films