It's sort of a catch-22, that the chickens that are most friendly, least fearful, and thus often our favorites, are the easiest victims - they aren't as quick to run, not so alert to potential danger, etc. In my flock of 30, my three Buff Orpingtons come to me, jump in my lap, allow themselves to be picked up any time. The Partridge Rocks, on the other hand, run shrieking every time I come into the coop, are aggressive with the other chickens, especially if something delicious is involved, are almost impossible to catch when it's needed... Which would survive hard times or a predator attack? Probably not my sweet little Orps...
Sorry about Leah