I guess all mountain freestyle would describe my riding the best. I like to hit every feature in the park, but don't get super technical with my jibs or spins. I like to go really fast, ride through the woods, hit banks and side hits. The whole shebang. I don't mind hanging out in a park all day, but its not on the top of my list for sure.
You want Bear/summit over Mt High for sure... They satisfy all the needs you listed, to an extent. Mt High you will find lacking and I'd avoid it completely in Your case. Never been to Mammoth so I can't say how it compares