go one better vs outclass

go one better

verb
  • To outdo somebody; to do something that surpasses what came before. 

  • To take a bet and add another to it. 

outclass

verb
  • to surpass something or somebody else, so as to appear to be in a higher class 

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