I know you said other ASPEN moutnains, but Snowmass is close enough... only a short bus ride. I'd have to say Snowmass Mt. only because I'm an all mountain skier. It has powdery, steep steeps to groomed catwalks. This year, they are putting in a bigger terrain park! In other words, it has the best varioty (i think that's how you spell it).
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'Don't worry, if you fall off the lift, I'll jump down and catch you!'