yes, a truly great, under-appreciated film. But ranked #1???

Rating: 8/10 (2 March 1999)

I have seen over 5000 films in the last 30 or so years. and as an amateur film critic, I am among the thousands (maybe millions) of movie buffs who also recognise that "The Shawshank Redemption" is one film that should be rated higher by film critics and be given more appreciation. It is superb!! entertainment!! However! to be ranked higher than The Godfather,Citizen Kane,The Seven Samarai,Raging bull,etc, What gives? If anybody can share with me their reasons for saying that this is THE GREATEST FILM OF ALL TIME?...over some of the films that I just mentioned, please explain. Am I missing something??