My favourite are:
WHITE DOG...Wonderful haunting soundtrack for an incredible heartbreaking Samuel Fuller movie...if you haven't seen this film i strongly warmly recommend to you to see it! it's blunt deeply moving and still relevant unfortunately:
https://www.youtube.com/watch?v=JBv0AegrE0MTHE STENDHAL SYNDROME...A great unique soundtrack for one of Dario Argento's best films...:
https://www.youtube.com/watch?v=ZMD5qglho3MORCA THE KILLER WHALE...the soundtrack is just grandiose, epic, beautiful, moving...:
https://www.youtube.com/watch?v=McQ-rXim-Ksand of course i don't forget:
Personally, I'd say 'Once Upon A Time In America'... just wonderful throughout.
one of my favourite Morricone soundtracks too, it's so beautiful, nostalgic, haunting..."Deborah's theme" is really something...:
https://www.youtube.com/watch?v=PuyYc0gINbUHow could a man write so many incredibly powerful moving music like these tracks???
RIP Ennio and thanks for all your incredible music from all these decades...you will not be forgotten.