(I actually started writing this before I got married, but only recently finally finished and posted it.)
It's nice to know there are still some real gems out there to discover within the Western genre. I rented 3:10 to Yuma and Rio Bravo recently, and they have immediately become two of my favorites (especially 3:10).
3:10 to Yuma (1957) - 3:10 handles the hero and villain very differently from most movies, especially from that era. The bad guy isn't your typical villain. He has a sense of morality, but he's not a tragic villain, as would usually be the case. Very interesting character. The hero, too, acts from very human (fallen) motivations, and his ultimate choices make him that much more triumphant morally. The pacing and location shots also make this film stand out.
Rio Bravo (1959) - Rio Bravo is a pretty fun film as well. Dean Martin's character arc is great, and Stumpy is surely the model for the original "Old Prospector." Angie Dickinson plays one of the most sensual characters I've ever seen. She exudes allure.
Young Guns (1988) - Young Guns sucked six ways from Sunday. There was nothing redeeming. I will now avoid Young Guns II with all the cat-like agility I can muster.
To summarize: you all must put 3:10 to Yuma at the top of your rental queue. It's awesome. See it before the new one colors your view.