as against vs versus

as against

prep
  • In comparison to 

versus

prep
  • Compared with, as opposed to. 

  • Against; in opposition to. 

  • Bringing a legal action against, as used in the title of a court case in which the first party indicates the plaintiff (or appellant or the like), and the second indicates the defendant (or respondent or the like). 

How often have the words as against and versus occurred in a corpus of books? (source: Google Ngram Viewer )