Yeah, I did my undergrad at Western, then moved to Laramie for grad school. Both are great places. For undergrad, unless you're doing engineering, I vote Western. Might be fewer riders than UW but: the riding is better (less windy, more snow, more varied terrain) and the school itself is smaller with a much better faculty to student ratio. At UW your intro and intermediate class sizes are on the order of hundreds, whereas at Western my intro classes were never over 50 students, usually closer to 25 and we were not taught by teaching assistants, only professors. Upper division courses at Western were between 4-10 students, at UW it seems the upper division courses are acceptably small too. UW isn't a bad choice by any means, I just had an awesome time living in Gunnison and feel it is a better school than many give it credit for. The riding is only about a 45 minute drive for both schools, with plenty of other options within 2 hours.
I was visiting some buddies in Crested Butte last winter, and ran into a crew of Western riders. So there are guys going to the school that sled, and a seemingly growing number of guys that just sled instead of doing ski access.
Here's a few photos I've taken in the area around Gunnison. The 360 view was taken June 15th, 2011... The summers around there are great too, if you're into mtn biking or hiking/camping or rafting. People pay thousands just to visit on a family trip...just saying