The most friendliest chicken I know is Donald, a giant orpington. Orpingtons are the worlds biggest chickens.
We hatched our Orpington in the incubator. We thought that he was a girl at first and called him Donna, which we changed to Donald as soon as he started to crow. I get him and sit down with him and I'll cuddle him and he will fall asleep. Orpingtons get bullied by other breeds of chicken so its best to get more then one.