Silkies personalities from what I've seen are 50/50, some are nice, some are awful, but they rarely lay and tend to be always broody, good for some people, bad for others. The feathers don't do good in all places (weather/temperature) either.
Most birds that lay white eggs (leghorn, buttercup, fayoumi, etc) are flighty, skittish, slender, good foragers and bad at being confined. Good for some people, bad for others.
Larger breeds, Cochin, Brahma, Orpington, Wyandotte, tend to be fairly calm, maybe a little dumb (gentle giants usually) generally weak flyers, but feathered feet aren't for everyone (not all breeds listed have feathered legs)
Easter Eggers are one of my favorite "breeds", you could buy ten and not a one would be guaranteed to lay a blue or green egg but the beard is cute (not for everyone) and the wife range of colors Is really cool to me. They tend to be loud mouths and fairly bossy from what I've seen and experienced.
Never had one but people sing infinite praises about naked necks/turkens, despite the literal naked necks (which some don't like) they tend to be cold hardy, good mother's, and lay decently.
My mom's favorite are bantam EE x bantam cochin crosses (alongside EEs, Cochins, favorelles, etc) and there's something to be said about the love for mix breeds. Especially when you hatch them yourself and get to see your little misfit weirdo grow up into a weirdo little bird <3