As mentioned in earlier post 57 has great genetics and most years lots of bucks. It also has lots of public land. With that said, the top 1 or 2 historic B&C antelope units in Wyo can stink in a year after winterkill or severe drought.
As Elks96 mentioned last winter was one of the worse winters since 2008 along the I80 corridor and a strip further north. 57 was smack dab in the middle of where snow was deep last winter and it was super cold and didn't melt for months. From what I saw around Rawlins and the Red Desert a lot of the older age class bucks in the 4+ year old range didn't make it through the winter. It usually takes 3+ years for Wyo bucks to reach B&C.
With that said, I saw more mass on young bucks than I have ever seen in my life. I saw several 2 1/2 year old bucks that made my jaw drop....with MASS! There was awesome growth on the numerous 2 1/2 year old bucks that made it through last winter. Those 2 1/2 year old bucks should be amazing in a couple years. As mentioned above, this winter has been pretty decent so far...knock on wood.
If you've spent any time in Wyo during the late fall through the winter you are aware that antelope tend to wander in large herds. If they happen to get pinned into areas with deep snow they can suffer significant losses....especially older age class bucks, older does, and fawns.
I spent an incredible amount of time scouting quite a few scattered antelope units in Wyo this past summer and fall. I saw more B&C bucks in several off the grid units than any of the historic premier units. There were a lot more older age class bucks in those units.
What I would keep in mind if I have a lot of pts and want the best chance for B&C is not to get tied up with draw odds. Just because a unit requires a gob of pts in any given year doesn't mean it will have many B&C bucks in the year you may draw. The key is to keep tabs on past years conditions. If you want a great hunt and score isn't a big deal it really doesn't matter what year you draw a quality unit. There will likely be fewer hunters and you'll have fun looking over a lot of bucks until you find the one that really excites you!