I have genereally found that heavier breeds are friendlier, there are always exceptions even with in breeds. I have heritage RIRs and they are the friendliest by far that I have had to this point, stupid friendly, they assume there is no way you intend any harm to them. My neighbors kids were playing football and my hens were on the field with them.
Even though they are stupid, mine lay quiet well and are gorgeous. I have found most of the sex link hens to be docile and friendly. EEs are a little more stand offish, may eat from your hand but not realy interested in being handled. I aggree kittydoc on wyandottes and they will go broodie too. Never had Australorps but consider them one of the prettiest, love the contrast of their red heads with the jet black plumage and their body shape.