I can only comment on the ones I have (since I am a first timer too!) and they are about 4wks old.
We have silkies, and so far we like them! they are very calm, and dont mind being handled and are very willing to roost on you.
We have one Plymoth Rock, and she is VERY social! she doesnt like to be picked up, but she wants to be near you, likes to be pet and will chill in your lap. She will also get loud when she wants attention!
I have 2 EE's. One is really really friendly, the other is really flighty. My flighty one isnt mean or anything, but she is skittish, and does a lot better if you let her approach you vs picking her up. She tends to run from the kids and doesnt like them holding her like that Silkies and Cochins do. In general my EE's seem to be more playful and inquesitive than my others. They are the first ones to explore new places.
We considered a Wydonnette b/c I heard good things.
So far, 4wks in, I like my Cochins the best. our cuddliest is Chili, a grey Cochin. She is the FIRST one to run up on your hand. ALWAYS wants to be cuddled and snuggled on. Heck, she flew out of the brood box just today and followed me in the living room! THEN tried to act like it was all cool...and we always let her chill in the living room! haha! I think NOT Mrs. Chili Girl. Our other Cochins are also VERY friendly. In general, they tend to be the first to run up to you for snuggles and pets.
WE also have 2 Cuckoo Marans, but they havent been handled as much as the others. They dont seem to enjoy it as much. But we got them mostly for the eggs.
In general, we didnt care about eggs as much as we did a friendly, docile non-aggressive personality. I wanted chickens my kids could enjoy. So far we are happy w/ our breed choices. Although, I am now wishing I would have gotten at least ONE D'Unccle after everything I have read!
Edited to add: My PR is a Barred Rock, since someone mentioned they have noticed that the Barreds are more friendly. And i would also agree w/ the statement about the EE's saying they are Curious, but not "leave me alone already" Curious. That is a GREAT way to put it!