beginners-solitudeWe didn't have any beginners with us when we went to Solitude, but Solitude seems like a steep mountain if someone is just starting out. The runs are groomed well, but the greens seemed steep for beginners. For BCC, Brighton seemed better (IMHO) for beginners than Solitude.
Alta has some good runs for beginners off both the Sunnyside and Cecret lifts. Lots of beginners don't make their way to the Cecret lift because it seems "further up the mountain". But they should. Some short, but nice and easy, tree-lined runs. And they dump out at Alf's Lodge, which is right there at the base of the Cecret lift. They can quit and have a bite to eat, rest, drink, and get right back out on the lift, no problem.
Another issue at Snowbird for beginners is the lodge layout. It's a real pain if you drive past the first available parking lot and park at the main lodge. Which you might have to do if you're renting equipment. Lots of carrying equipment up/down stairs, through parking lots, etc...
Park City has good beginner stuff also.