I am not so keen on High Noon, but if these 4 don't do it for you, it's hard to think which Westerns will.
I'd rate Shane
and High Noon
as the 2 best westerns ever made and Unforgiven
is the best of the later westerns, so it's not a problem finding stuff to 'do it' for me. I like some of Leone's other pasta offerings but I can't really connect with Once Upon a Time in the West