Im very new to chickens, and have only been around Red sex links, golden sex links, black sex links and a buff orpington/wyandotte mix. My BO mix is afraid of me, she will bolt at any chance she gets, her name is meep. My GSL is a sweetie, she runs when I try to catch her but there have been a few times she'd just let me hold her and pet her. She was great about letting me hold her when she was a baby and yesterday it was very hot and I think she didnt want to waste the energy it would take to run so she let me hold her LoL. My BSL is also afraid of me, but I think I just haven't tried to pet her enough. It has been so hot that if they wont let me pet them I dont push the issue. They'd get too hot running away from me, and I dont want to be thought of as the giant crazy woman chasing them around scaring them. My RSL's are sweet and even my 5 year old can pick them up and carry them around. My RSL roo is one of the sweetest birds I have, my 5 year old will tuck him under her arm like a football and just carry him around. In my opinion the sex links are the sweetest but I have very limited experience with anyother breeds. It also has a lot to do with how much & how you handle them when they are chicks. Some breeds are just very flighty & shy but I have been told even the most outgoing friendly breeds will be standoffish if you dont handle them or interact with them.