invaders are good, just a skinnier anthem so u dont have as much stability from width, but there fine, lots of fun in and out of the park, not so much in pow
I ride the Anthem and have ridden the AR6, not the JO Pro's.
Based on how you describe the ski you are lookin for the Anthem will definitely meet all your expectations and some. The Anthem really does kill it all over. I have used them in every condition and love them.
The AR6 would work as well but it is not nearly as soft as the Anthem.
get elizabeths, they take some getting use to but technically they are a park ski. plus they are sick as hell and will rip on the back country, just as long as your not straight lining a powder run next to some guy on hellbents, you can do anything