Chicken.
Beef is ok, mainly in hamburger...I view roasts, steaks, etc as a "treat", have it once every few months.
Elk is the best, but takes a LOT of work to get.
Incidentally, the more fem I become, the more sensitive I am to the animal. I've always "sensed" the animal's life while I've been eating it (and yes, it's disturbing), but it's even more so now. I think I will be trying out a vegetarian diet soon...or at least try to be less a carnivore.