I watched Ride Lonesome and Comanche Station this evening. Ride Lonesome definitely wins for having the greater showdown and finale. I liked Comanche Station, but it didn't seem to have anywhere near the same stakes or level of tension as previous Boetticher films.
Of the 5 Boetticher/Scott Westerns that I've seen, I'd rank them as follows:
1) Decision at Sundown
2) The Tall T
3) Ride Lonesome
4) Buchanan Rides Alone
5) Comanche Station
All 4-star pictures with Decision maybe being a 5-star "essential". All highly recommended.