Nothing wrong with having favourites, Nix, we all have them.
Due to my young age at the time, I saw the Dollars films some while before I finally got to see OUATIWest, even though I owned the music before seeing the film.
Strangely, my favourite was GBU - both the music and the pace of the film and the characters and the sad hill cemetary build-up with Tuco looking for the grave, the prolonged trio gunfight, all magnificent. It was like the Leone work had taken 3 films to reach its peak, so to speak, and the Morricone music had done the same - starting quite basically with its Fistful of Dollars flute trills and whistling and whip cracks culminating in the operatic throbbing crescendo of Edda and the loud guitar work of Bruno D'Amario.
When I got to see OUATIWest it did not- at the time - impress me as much as GBU. The pace was a little slower and there was more of the typical Leone ambiguous dialogue and initially-unexplained actions of the characters. The music - although wonderful - to me, it was missing the energy of GBU.
As years went on and I matured from action-loving teenager, of course, I learned to appreciate OUATIWest with a different eye. And its music too. I realised that it was yet another step forward in maturity and complexity for Leone and again, cleverly in parallel, another step forward in maturity and complexity for Ennio's music.
It was quite incredible what our Maestro did there, each time mirroring the size and ambition of each film as it went up a level. A very subtle stroke of genius. This was something pointed out by Patrick E in his Italian Western piece on Didier's website and he was right.
One more point. And we could do with Laurence's view on this and one or two of the old western collectors. There does exist, though, a group-think among the world's film professors/students that - clearly because OUATIWest is a mature and unusual and exceptionally stylish western of borderline arthouse pedigree - it is okay to like it. It's cool and trendy to have it as one of your favourite films!! Obviously it is one that many students the world over often study as part of their film and media courses and ranks in there with Battle of Algiers, Apocalypse Now, etc etc.
Me? I dont care if Im trendy or not, and I dont care if people look down their nose a little at me when I say my favourite is the Good The Bad and The Ugly!!! - even if it is viewed as a little rough around the edges, a sort of energetic but unkempt 'backstairs sprog' who is kept on to do the gardening, compared with OUATiWest's classy, posh and groomed Lord of the Manor!