That's interesting. Of my three, Mary is the gentle one, Sandy pecks hard but her beak was trimmed at some point in her history and now it's a blunt instrument, so she may not have the sensitivity Mary has.
With me, Hattie and Aurora both have sharp beaks and like to rake my hand. I agree, that's not fun! Lilly and Maleficent are both very gentle and take their time. Lilly's beak is quite rounded. I assume that is age and wear. Maleficent's beard tickles and is very warm. She puts her neck right on my hand. Hattie has the best wattles. They feel funny on my hand. I love it.