Ya, id say go deathwish. I own the PBJ, and its amazing for when it hasnt snowed in a while, but they are not nearly as good in pow or mank as a fat ski. The deathwish is 1cm fatter and thats normally not that significant for pow, but i find the {95mm to 105mm} and {105mm to 115mm} width changes to translate more dramatically in flotation changes than say {115mm to 125mm}or {125mm to 135mm}. Although it all depends on weight i guess. The deathwish is also softer and a little snappier, for more forgiving and fun off piste maneuverability.
The Deathwish would be a better one ski quiver for a mountain averaging 350" of snow. And if your afraid of the width change coming for a 90mm ski, dont be. You will get used to it, and then you will likely prefer it, like most other all mountain skiers in 30 foot snowfall regions. It will revolutionize your skiing, and youll love them on powder days.
You could also go on3p jeffrey. I never see those for sale used. That translates, to me, as people who own them love them.