Replying to 70% park 30% groomers, new to park, nice budget

First of all Merry Christmas, Happy Hanukkah, [Insert religious entity celebration that all corporations profit off of here]

So Im going to be new to park, really new, but i pick up stuff fast..  and thanks to today, i now have alot better budget then I did before. I want to focus on rails, lots of butters, and smaller kickers. [I do not live in any area with pow, so it doesnt matter if the ski floats]

So this is basically armada vs armada vs line... ya im scared to venture out to other companies for trick twins.. but i really dont want to.

Note: information on the ski you recommend would be nice, instead of just one word haha.. im trying to learn

Thalls vs AR7s
I was thinking about to Thalls over AR7s since they are more park oriented and only $50 more.

[Thalls vs Ar7s] vs Chronics

This things look dope as shit how do they stack up to the armada's?

Others...
Afterbang - I originally came to decision i wanted these, but with a bigger budget I think the other skis would suit me better.. what do you think?
09/10 Lizzies - I hear good things, but are they too stiff for buttery-ness?

Length question- Im 5' 10' 160lbs, and I know you use longer skis for stability on rails and jumps, just checking with the experts(you guys)