fair-haired boy vs golden girl

fair-haired boy

noun
  • Someone's favourite, especially a young one; a blue-eyed boy (British), (Australian) 

golden girl

noun
  • A favored youth, held in high esteem by others, and for whom there are high hopes. 

  • A young woman who has become unusually successful at an early age. 

  • A young woman who is beautiful in a wholesome and healthy way. 

How often have the words fair-haired boy and golden girl occurred in a corpus of books? (source: Google Ngram Viewer )