I ski the AR7 and love it, that being said im 6'2 220. I would say THall or Halo (depending on if you want rocker or not) both are good solid park skis that'll do fine around the mountain and are a bit softer skis so you can flex em without them being noodles for you.
As for the El Rey beginner discussion I think the "just getting into the park" comment in there description is less about the ability level but more a comment about if youre deciding you want to get a ski for the park but dont wanna go out and drop $600 on the THalls, AR7s, etc. just to find out you hate skiing park, then that would be the ski in their line that would suit you. Maybe I'm wrong though, as I am not an Armada rep.
Anyway hope this helps!