Replying to AR7 vs. Alpha 1

Whats up NS, I live in the North East you could say. I ski in Canada more specifically in Quebec. I'm a expert skier, I used to race for a few years then switched to park. Been doing it for 3-4 years now. Right now I've been researching new skis to replace my 08-09 Armada AR6. I loved them, but they are beat from urban, rails, rocks etc.. I was think AR7 just because it is basically the same thing just better, but I'm also looking at the Alpha 1 and getting into rocker. I'm 70% rails 25% jumps and 5% powder (trips out west and the odd)
Is rocker really right for me? Strong points of each ski? Any other ski suggestions?