Personally, I enjoy the fool out of those B westerns of 1930-1955. The further out i go from 1960 the less there is in terms of western that I enjoy. Robert Mitchum is one person I enjoy, but I don't think he made too many westerns after the entertaining Five Card Stud.
But the ultimate for me is Mill Creek's 250 western collection, although they're are some stinkers from the Spaghetti era.... nothing like a dubbed Jack Palance and Lee Van Cleef and Richard Boone to excite ya. And I just have to say that Tom Tyler is awesome.
