Replying to New powder skis... suggestions?

Hey all, i've been looking around for awhile but i could not find too many similar threads to this one. I currently have on3p Filthy riches mounted at center with axial2's. This year, i have been riding alot more at whistler than i used to, and i think it's time for me to get some powder skis. I was wondering whether i should get all mountain/pow skis such as the Sir Francis Bacons, or get full on powder skis like S7's or Magic J's. I'm gonna be riding mostly at whistler venturing into garabaldi sidecountry off 7th heaven, and catskiing at powder mountain. Which skis should i get?
5'11''
165 lbs