from my understanding of what you want and your size i dont think the extremes fit your needs too well. Im not going to lie, i dont know too much about the other skis you listed but just from people who i have met who ride them and from flexing a few of them you would probably be happy with either of those skis. Here is a list of some skis i know, that would probably be good for you.
+Nordica supercharger ignitions, i rode a pair of these for about 4 days this summer and have been using them for jib sessions we have had in the few inches of snow we have gotten.
+Line chronics i had a pair for about 40 days, loved them they are at the stiffer side of your preference but they have amazing pop
+Fischer addicts my current ski ive had them the hole season and have only gotten a few edge cracks, again they fall under the morer stiff side of your ski preference but, they are symmetrical, not too heavy, lots of pop, and they still handle great on the rest of the mountain
for a little insite, im 5'11'' and 200 pounds, while im heavier i think they could still work for you
superchargers are the softest and chronics are a little stiffer than the addicts, but the chronics quickly softened up into a ski with very playful tips and tails but still solid underfoot. the superchargers are also about a medium flex throught the ski and have very soft tips and slightly soft tails, they are really fun.
I have a pair of scratch bc wrs(yellow/white ones) and they kill it in the park and are great all mountain, they are in near new condition and have barely been rode at all, i think they may have 1 edge crack, if you are interested i could go look and give you exact details, perfect bases mounted for rossi axial2 bindings at the modern point. may be a little stiffer than what you are looking for but they are super light and really poppy