Another lap chicken question... How would you rate these breeds?

I only have the last two, and THEY are in the correct order, because I'd say an orpington would almost always make a better lap chicken than a barred rock. Barred rocks are quite friendly, and mine will hop up to my lap or shoulder (because she's so inquisitive/friendly), but she's not a cuddler. But my buff orp is a cuddler.
I've read that cochins are quite cuddly as well.
Depending on the age of your son, you might consider bantam cochins??
Why are silkies (notorious lap chickens) not on your list??? Just not partial to them?

 

I have each of those. My Buff Orpingtons are the lap chickens. They are by far my favorite of them all for this. I tell people they should be nicknamed "The Puppy Dog Chicken". They follow me around the yard and fight to sit in my lap when I sit down.

 

I have all but the Cochin, and they are in the order I would put them. Brahma, Orp, Barred Rock.

 

I've had the first three, and the Brahmas are, by far, the most docile, affectionate, lap and cuddle-prone of my entire flock. The Orps and Cochins are very lap-prone, though.

Be careful of the Brahma roos, though. They can be big and domineering, although after my Brahma roo was rehabbed, I now have a "lap-roo."

 

i had a brahma, she was nice but not a cuddler, our cochin roo was so calm he didnt care what you did so he would make a good lap chicken and our orp is nice and just sits down on you, so i would say Cochin and Orpington

 

I have a Silkie hen who lives in the house and is sitting on my lap as I type this. I would like to echo the post which asked why you haven't included them in your list? She even laid eggs all winter when the outdoor hens had quit. I cuddle her while I watch television, take her on car rides with me, and many other embarassing things. Though I have had other Silkies who weren't like this so I don't know if she's just a little "special."