Robo, you are a nut....anyway, if I were to keep a rooster, I would pick according to what I wanted to breed and if the rooster is nice. I would definitely get rid of any rooster that shows signs of aggression towards people. Then, I would decide what I would like to breed in the future. For me, I am interested in all the different colored eggs. I have hens from all different breeds and get eggs that are all shades of greens, blues, pinkish, browns, off whites and white. I sell my eggs and people are fascinated by the different colors. Anyway, so for me, I would want a rooster with some fun colored egg genes. (Or, if I want olive eggers and have lots of blue/green egg layers, I would want to use a dark brown gened rooster like a Marans) If you are interested in eating your chickens, you may want to keep the rooster that is the largest. If you are breeding a certain breed, you would want to check for the "standards" for that breed and keep only the roosters that are the closest to the standards. You don't want to use a rooster that has any defects or hereditary problems. (curled toes or the wrong comb for that breed)
If you are just having fun with your chickens and don't care about "standards", etc, then just pick the one with the best personality, coloring, or just the one you like the best!
