If your going early April, you'll be right up against their closing date.
Colorado has been kind to me for late spring season. They still get dumped on through May, however most of the resorts lease National Forest land and are required to shut down on a certain date. Additionally, most people don't realize March is their best snow month and start to turn towards warmer weather activites by that time, so it doesn't make economic sense to stay open longer.
Two years ago, we snowboarded out there in 70 degree weather in early April... resort had a decent base and we had a blast. So, chances are conditions will be fine and crowds will be minimal. If you're up against closing weekend you may find that some restaraunts may be closed or have a minimal menu.
Depending on your party's skill level...Vail for the back bowls and Blue Sky Basin...Beaver Creek for tree skiing and lasting snow conditions (less crowded). For the cruisers in your group, both do a great job grooming.
Apres-ski in Vail. Katlenberg Kastle in Lionshead Village($4 litres of Dunkel!!!...well 4 years ago) Lionshead is being renovated, so it may be closed. In Beaver Creek, the Coyote Cafe.