I'm new so here's all the SW I've seen.
All the Leone, Mannaja: A Man Called Blade, Django, Death Rides a Horse, God's Gun (garbage), Sabata, The Bounty Killer, and today I watched Minnesota Clay.
Minnesota Clay was alright it was like Django except with a reluctant aging gunfighter. Cameron Mitchell is the first actor in one of these that makes me think they were going for a John Wayne type instead of a Clint Eastwood type.
I've filled up my Netfix queue with everything I could find from the Top 20 lists.
Just to make you jealous I've met Enzo G. Castellari and Ruggero Deodato in Person.