Plymouth Rocks (barred, partridge, columbian, white, etc etc) are VERY friendly, tolerate confinement but are smart about free-ranging (I didn't have a coop for 2 years), and lay straight through Southeast winters (Atlanta and Upstate SC) without batting an eye.
I don't know what region your parents live in, but I'd definitely recommend rocks for people who haven't had chickens, or want friendly ones.
I haven't seen my Australorps lay, but they're so hefty that I'd have a hard time believing they'd slow down much except for the coldest winters. Living in the South definitely has its advantages!!!