dude you can't expect your thread to be full of answers in 20 minutes. patience is key
just check their websites, lines website says afterbangs have butterzones and carbon ollie bands and so far everyone seems to like em.
masterminds are all mountain skis so they'll be stiffer than afterbangs and better for jumps n all that jazz.
i don't know much about the ar7s but heres their page with charts and a review
there are also video reviews for all those skis on their individual page so don't listen to me.
"Words can only hurt you if you try to read them. Don't play their game" -Zoolander