I've never understood the high regard so many hold for The Shootist. To me it always plays like one of those 2nd rate '70s made for TV movie. The camera work and editing is poor, the dialog is trite and pretentious, and most of the actors are just walking through their roles.
If looked at critically and not as John Wayne's last movie and a fitting farewell, I don't think it would be considered one of his better films.
IMO, some of the Duke's best work was in Red River, The Searchers, and They Were Expendable.
Best regards,