I've been skiing for 13 years, and I've gotten bored of downhill. I'm moving to park & pipe skiing, and my budget is about $450 or less. The 3 skis I'm looking at are the armada El Rey, the armada AR7 and the volkl alley. Which one of these is best for a beginner park skiier who wants to build skill level in the park? I am really leaning towards the AR7, but I want the opinion of an experienced park skiier.