Strange thing about the legbars is although they are a little nervous, they always loves to fly to my arm and perch there. In other words, human friendly! The Oliver eggers (legbar and Welbar cross) are even better yet, since they are less flighty and even more friendly. I miss little Molly, who was such a sweet lap chicken.I've never had buff orpingtons but I have English orpingtons and they're easily one of my favorite breeds. They're huge and such friendly birds. EEs can vary widely since they're just colored egg laying mixes but are generally gentle and friendly. Speckled Sussex tend to be very sweet and beautiful. Legbars are beautiful and good layers though most of the ones I had tended to be more skittish. That's about the extent of my input from your list