second to none vs uncomparable

second to none

adj

  • As good as the best, as in quality or reputation; inferior to no one else or to nothing else of the same kind. 

noun

  • Heroin. 

uncomparable

adj

  • Not comparable. 

  • Not able to be compared; not comparable. 

How often have the words second to none and uncomparable occurred in a corpus of books? (source: Google Ngram Viewer )