@MrsA510, welcome to BYC! We also free range our birds and favor the friendly, pretty, colorful breeds...and we are downright OBSESSED with having the most colorful egg basket possible! Good news is, there are a LOT of breeds that fit your criteria, and you came up with a nice list. I'll give you my take...
Barred Rock: We have two, and they are my all-time favorite! Ours are curious, comical little attention hogs. They DO get somewhat "pecky" if they feel you're not paying enough attention to them, but we find this trait endearing (though some chicken keepers don't). They lay a very light brown egg that looks as though someone took a paint brush and flicked white paint all over it...very pretty.
Buff Orpington: We have one, and though she is not especially friendly, she is VERY gentle and easy to handle...even for children. The bright golden plumage is just beautiful.
Easter Egger: We have four, and they were ALL flighty as chicks but calmed down considerably at point of lay. You can't beat the variety of plumage AND colors of eggs. Two of ours lay green, one lays blue, and another lays a bluish-green. I've said before that if I could only own one breed (though the EE isn't a true breed), this would be the one.
Silver Laced Wyandotte: We have one, and she lays a darker-than-average brown egg and has flashy plumage...but her temperament leaves something to be desired, IMHO.
Welsummer: We have one, and she has gorgeous plumage, is a first-class free ranger, and lays lots of huge, beautiful terra cotta eggs with dark brown speckles. I wouldn't say she's the cuddly type, but she is docile and for so many reasons, is just a GREAT bird to have around.
Jersey Black Giant: Never had one.
Buff Brahma: Never had one, but I've heard good things.
I hope this helps, and if you have any other questions, just let us know. By the way, I also have a 2 1/2 year-old son, and he just LOVES chickens of ALL ages. I am a firm believer that every kid deserves to grow up with chickens. Best wishes to you as you embark on your chicken adventure!
Edited by TBirdsTheWord33 - 3/10/16 at 5:46pm