friendlyist i've heard of-Silkies, seramas, Jersey giants, Black langshans. and most other large breeds. most unfriendlyist-Rirs. EEs. OEGBs (although all of my OEGBs are REALLY friendly. ) gamefowl (my hens and rooster are friendly), and... all i can think of at the moment
Not an old-timer, but of the three cockerals I've had, the RIR was starting to get aggressive at 16 weeks, when I found him a new home. The silkie would be nasty is he was any bigger and didn't have feathers flopping in his face. He would love to be a nasty flogging rooster, but he just gets picked up and cuddled. So nasty, but too small and blinded to be a menace. That leaves my BO, who is always a gentleman. He comes to protect his ladies, but has never come near to being nasty to a person. Just a big sweet guy.
I have a white leghorn, hes not mean to me but he is to my dad because I believe women raised him and not any males. If you get them young you'll have a stronger bond. But if not you could find them homes.
I recently got a Barred Plymouth Rock, 22 weeks old to go w/ my 22 week old girls. He previously lived in a coop w/ running pen and a chicken tractor during the day. With me he is free ranging. The last owner said he was loud and pesty w/ the girls. I find him to be a real gem and after a few rounds now he is a gentleman w/ my girls. I think he's just thankful to be able to free range so he's happier. Overall he is a good breed, I think.
i have 2 leghorns,,ones a son of the biggie, and the biggie hates everyone but me, have 3 rirs, they dont wanna be touched but handle it, 1 brahma (blind) he's my baby sitter, and a barred rock, hes the sweetest of them all and another babysitter,, so meanest towards anything that moves is my white leghorn, and best is the rock.
EDIT: forgot bout my gamefowl,, he's mean if he's cornered,, scared if he can run.