Years ago I was told the difference between Ansel Adams and Edward Westons was that Adams made people look like rocks and Weston made rocks look like people.
I guess the difference is the rapport yoou can create between yourself and your subject. If you're being critical of different facial characteristics. you're not seeing a person, you're seeing a face.
That's the difference between great portraitists and $29.95 photography where one lighting regimen fits all.