On 2nd thought:
Purgatory will be packed with really long lift lines on spring break. Wolf Creek or Telluride shouldn't be so bad. I checked the map and Telluride has added a lot of park lately. It will cost you about 25 to 50% more than Wolf Creek. For an intermediate group I would pick Telluride. I do have a prejudice against Wolf Creek. Everytime I book a trip 3 weeks in advance it doesn't snow for those 3 weeks. Still it really doesn't have a great deal of intermediate but it does have some steeps and trees.
For views I hear Telluride is great. When we were there it was getting nuked and you couldn't see very far but you had freshies on every run.
Thats what happens when you plan... The best days of riding I ever had were at the Wolf when they got 110" in 3 days. I saw that they had over 36" in a day on the news, told my boss I was out and drove straight there. Most beautiful thing I've ever seen.
Not from Montrose. I have never seen the roads closed...no passes either though. The worst I have ever seen it was the snow between Montrose and Ridgway...snowing so hard we were going like 35-40. Thought about turning around and it was bluebird from Ridgway to Tride. Turned out being an amazing day. Dallas Divide can get pretty snow packed, buts I haven't seen it too bad. 1 hour to an hour 15 minutes on a good day. The longest it has ever taken me is an Hour and half.
mid march usually has pretty good snowpack. i live in durandgo and our resort is pretty legit, at purgatory tickets can be pretty cheap 2, 40-80$. make sure you hit the pithfork terrain garden. it has a few rails and a sum nice 30-40 foot jumps.