It was hard to choose, but since the poll asked which was my favorite I had to go with EE. Everyone has a different opinion of "friendly" when it comes to chickens.
In my mixed flock, I have a (hatchery) wyandotte, EE (hatchery), 2 speckled sussex (hatchery), orpington (non-hatchery), and true ameraucana (non-hatchery). The flightiest by far is my ameraucana, she has this tendency to run screaming if anyone, including the other chickens, looks at her cross-eyed. The "meanest" bird we have is our wyandotte. She plucks feathers from all of the other birds, but she is nice enough to us and usually quick to squat even though she definitely doesn't like being picked up. She will be rehomed to the stewpot this fall because of her attitude towards the other hens though.
The orpington (and ameraucana) we got as 4-6 month old pullets, so I'm not sure how much they were handled as chicks. The orpington is quite stand-offish, but not fast to panic when we approach. She also seems to get along really well with the other birds. She's not friendly in the want to spend time with humans kind of way, but I really like her temperament a lot and I don't think it would take that much effort on our part to make her a little friendlier with us.
Our speckled sussex are walking stomachs. I'm not sure how much of it is them being "friendly," and how much of it is them being little gluttons, but they are always the first to come running full tilt from wherever they are when they hear the back door open and I've lost count of the number of times I've stepped on them because they're under foot waiting for us to hand out the goodies. They do not however enjoy being picked up and one of them is quick to growl and peck at you if you try to take eggs from under her when she is sitting in the nest box. And she's pecked me more than once in her eagerness to get the treats in whatever bowl I'm carrying, but it isn't malicious on her part. I rather like them a lot and I would say that they probably fit most people's definition of "friendly" even if they aren't cuddly.
The family favorite, the EE, is also not cuddly-friendly, but definitely fits most definitions of friendly. She will allow my 2 year old to catch her, pick her up, and carry her around the yard. She doesn't enjoy being picked up, but she doesn't run screaming from you when you go to get her either (although she does walk quickly away if she isn't in the mood to squat for you). Another EE we had, whom we had to cull for internal laying unfortunately, was even friendlier. In fact, she seemed to enjoy the attention of being picked up and carted around by a toddler...or at the very least she didn't make much of an effort to get away when she saw him coming.