wow, those are three different skis, but im thinking your looking for a ski that good at park, but can do other things if necessary.  i would say chronics, they are great skis, and you'll hear very few complaints from anyone about them.  they also come in wide, so that's an option if you want a ski that handles powder better.  the others are also great options, though the PE is pretty stiff, the AR5 is pretty expensive, and the invader is strictly a park ski because of its softness unless your a lightweight.