Ok. So I'm correct in thinking that for my own domains that I manage it boils down to the same thing, e.g. there is no reason to prefer www CNAMEs over domain A

Ok. So I'm correct in thinking that for my own domains that I manage it boils down to the same thing, e.g. there is no reason to prefer www CNAMEs over domain A records. Just wanted to check if I'm missing something.