all 3 films are very good spaghetti western. the films have really deserved the great german DVD "Sergio Sollima Italowestern Box".
my favorite one is "La resa dei conti". really good story, great music, one of my favorite actors Lee van Cleef is acting and there is the Character of Chuchillo which is great and very funny (Thomas Millian is acting great). and this film has a great showdown.
all these things make this film rank under my top 5 spaghetti western.
almost as good as "La resa dei conti" is "Corri, uomo, corri", which also has a good score. As i mentioned before i love the character of Chuchillo. And its also nice to see his hot girl friend and the other sexy blond woman. the story is also very good.
btw all sphagetti western (i know) with the theme of the mexican revolution are one of the best films of this genre!
the last one "Faccia a faccia" is a little bit untypical spaghetti western, but also a good one.