The best season so far? Maybe. The writing was very strong. One weakness is possibly the Nelson Van Alden character. It seems they didn't quite know what to do with him anymore. And I still have some problems with the casting of Steve Buscemi in the lead role. Bill Paxton was busy? Him and Shea Whigham would have been more believable as brothers. Or Martin Donovan? Anyway, I loved the way the season ended. Emotionally, it was very effective. And it felt right that the final image was the Richard Harrow character, who in many ways was the heart of the show. I know there is a fifth and final season, but I think maybe I'll skip it. Apparently it has only eight episodes, with lots of flashbacks, and some reviewers found it disappointing. I think maybe I prefer to let the ending of this season be the ending of the show. It's openended, but in my mind that makes it better.