The reason I was asking about skiing in resort is because it affects the sort profile/rocker to get. If you're not going to be using the stuff in bounds or on hard snow then a fully reverse cambered ski is probably the way to go. I have skis that are full reverse cambered (Kuros) and a pair that are reverse under foot but then quickly become reverse camber (S7s).
IMO a fully reverse cambered ski is better in powder than one with regular camber underfoot and revese in the tip and tail. My Kuro's are better all around in powder than my S7s but the difference is most notable in trees. The first time you try a fully reverse cambered ski in trees you will be blown away. Even though they're the biggest skis I have they are by far the fastest turning and most agile in these conditions.
If you not planning on landing switch in pow then I'd go for more of a pint tail type design (kuro, s7 etc...)rather than something with a really wide tail and/or symmetric sidecut (e.g. Hellbent, chopstick).
Also, reverse cambered/rockered skis feel a lot shorter to ski than regular camber skis. You can easily go 10cm longer than you'd normally use, you'll still be amazed at how quick they turn.
By the sound of it a fully reverse cambered ski with a highly asymmetric sidecut (e.g. Kuro, Pontoon etc...) would be best for what you've described. But bear in mind that this type of ski is the most specialised type of pow ski and they are the least versatile as a result. If you want to ski pow in a resort or just duck the rope into some slack country then are regular camber under foot/reverse caber everywhere else will give you 95% of the performance of a fully reverse camber ski but will work a lot better in other conditions. Also, I really notice the extra float that my Kuro's give me over the S7s in pow but I ski CO where the pow is normally lighter so gives less floatation. Also, I'm basically double your weight (220-225lbs) so I really beenfit form extra float that you might not need as much.
As to a particular ski I can't definitively say one type as I haven't tried them all and I'm too different in size too for me to give you a fair recommendation (the Kuros were a better choice for me as they were stiffer and bigger than the Pontoons but you probably won't need or want that as the Pontoon would easily be big enough to float you and you probably wouldn't want the extra stiffness/weight). I have Kuro's and when the conditions are right they are my favourite skis in the world. But I also have S7s and use them more often than my Kuros. I don't think that the S7s are necessarily a better ski but they are more fun in more conditions. Also... my sister, who is pretty close to you in size, has S7s in a 176 (yep 176cm, she wasn't sure about the length initially but now wouldn't change them for anything else) and their seem to be her favourite things in the world.
One final note, if you're want to put skin on your skis/use AT gear then rockered skis won't work. Regular underfoot and reverse camber everywhere else might work but I'm not sure. Fully reverse cambered skis are also slower in a straight line in pow than partially reverse or regular camber skis. Not really that important but might be relevant.(It is slightly annoying when my sister straight lines past me on flatter slopes).