SFOT - Just an amazing site arriving from the highway. The park is so big, which makes the skyline seem huge.
CP - It's gotta be on there!
Elitch Gardens - Surprisingly, I was impressed by the skyline. It's surrounded by huge buildings in Downtown Denver which makes it even cooler.
Knotts - Although I've never been there, I've always loved the way the streets go around the park. It makes the park seem landlocked, so the skyline is just kind of "there".