I see Lonesome Dove listed in a post just a few places above yours. And a quick scan found it on a list on the first page. I didn't look any further than that.
Well, de gustibus et coloribus non disputandum. But, my list of westerns (I actually dislike lists, tags and ratings) would have certainly comprised, not in a particular order of any sort, but as they come in mind: 1. The Wild Bunch 2. The Unforgiven 3. Shane 4. High Noon 5. Il Buono, Il Brutto, Il Cattivo 6. One-Eyed Jacks 7. C'era Una Volta Il West (mainly for the opening sequence, as well as for the fact that Henry Fonda was chosen to portray a villain)