Funny you should mention Black Sex Links as I was going to post them as my favorites (although they are hybrids and not actually a breed). BSLs are my personal favorites because they are friendly and hardy egg laying machines. I raised them for years (along with dozens of other breeds and hybrids), and they have been my best layers, consistently churning out more than 300 large, brown eggs per hen per year. My Red Sex Links and White Leghorns have also had similar lay rates, but my BSLs have actually outlayed them slightly in really cold winter weather and have tended to lay the largest eggs of the three with double yolks not being uncommon.
Sorry, I forgot to post a pic of some of my Black Sex Links, but here is a couple of them.