by a long shot vs decidedly

by a long shot

prep
  • By a wide margin; indicates a very big difference or disparity. 

decidedly

adv
  • In a manner which leaves little question; definitely, clearly. 

  • In a decided or final manner; resolutely. 

How often have the words by a long shot and decidedly occurred in a corpus of books? (source: Google Ngram Viewer )