One thing I have found, the chicks that are the most friendly and cuddly and sweet are usually roos. I had a black cochin, a white faced black spanish, a bbr araucana, 2 wheaton ameraucanas, a mottled houdan, one that I had no idea what he was, and a black sumatra that all were like you described Peanut to be and they all turned out roosters. Very sad because one of them ended up in chicken and dumplings (too many roos). :
But on the other hand all ameraucanas are extremely sweet, I have 28 of them.