Emily from Nerds With Knives and her husband have seven chickens that lay seven different colors of eggs. Their breeds are Salmon Faverolles, Cream Legbar, Silver Cuckoo Marans, Olive Egger, ISA brown, and Ameraucana. She posted this picture at reddit. Someone asked her which chicken is her favorite.
I love the blue eggs but she's very skittish and shy. The tiny pale egg is very friendly. Some breeds are very tame and will let you pet them.
Edited to add (in case any of my chickens read this): I love them all equally.
She says the eggs all taste the same, though, fresh and delicious.