Honestly, I abhor Beaver Creek's park.
I would recommend going to Vail. Although, I know other people don't like their park, I'm a big fan of it. Also, it has the back bowls + blue sky which are great on pow days.
No, their park is pretty good in terms of features, but the lift lines to lap the park are just terrible. The Vista Bahn at Vail almost always has short/no lift lines. That's why I prefer Vail.