If I had 2 roosters I would chose a friendly one over a mean one, I would also chose a rooster that didn't crow as much or start crowing too soon. My last rooster crowed at 7 months.
I could live with that... mine start at around three months, and because I’m breeding, there’s a lot of them! The sense of peace and quiet I had the morning after we took the last batch in at 17 weeks old was wonderful. Now I’ve got another batch starting up again. Plus my six mature roosters, all conveniently located within 200 feet of my bedroom!
And I also agree with you on picking the best attitudes available whenever possible. Out of my up and coming crowers I plan on holding one back for breeding... my initial pick has been showing some undesirable behaviors, like pecking the pullets fairly hard and trying to get my attention. I will probably be going with his brother, who isn’t quite as desirable IMO in the other traits, but my priorities are his behavior towards his hens first, then his predator awareness and foraging abilities, and then his behavior towards me and other people.