she vs this one

she

pron
  • A person whose gender is unknown or irrelevant (used in a work, along with or in place of he, as an indefinite pronoun). 

  • The female (typically) person or animal previously mentioned or implied. 

  • A ship or boat. 

det
  • Synonym of her 

noun
  • A female. 

this one

pron
  • A specified object, thing or person (especially one nearby or known). 

How often have the words she and this one occurred in a corpus of books? (source: Google Ngram Viewer )