I've spent some time in breck and vail, breck was harder for me to find good runs with anything to jump off and generally, I was more beginner by then and i didn't go to peak 10 cause i thought it was all for skiers and i didn't do the imperial bowl cause i was scared just by looking at it from mid mountain. All i can say is brick is fun and really crowded. This year I went to vail and loved it! found some good jumps built between trails on the front side of the mountain. The back bowls are nice but they do get somewhat boring. Blue sky is where its at for me. Found good powder stashes pretty much no crowds and rides that would put big smile on my face. the drop to the right of the lift is short but amazing!! I'm lodging in keystone this year and I've only been to the front side of the mountain, but from the looks of videos I've seen I'm going to enjoy the back of keystone more than breck. Ive got 6 days to ride I'm thinking ill do probably 2-3 days keystone 1 day A-bay and one day breck and 1-2 days vail. Assuming the snow is good at keystone.