Alright. Get ready for heated debate and smack-talking. I'm about to make a bold claim.
If I could only have ONE waist width for a ski. ONE. O-N-E... It would be 112mm underfoot. No more, no less. 112mm on the dot.
For resort riding on ice, chop, pow, leftovers, frozen chunder, corduroy, hero-style spring corn, ANY conditions accessible via chairlift, 112mm underfoot is that Goldilocks juuuuust-right width that's not too skinny to float fluff, but not too fat to maneuver on a dime.
I'm a card-carrying member of the Church of Chubby Skis--I'm very upfront about that bias. Any daily driver that I choose will be 100mm underfoot minimum, and I'm happy as a clam to ride 115-120mm underfoot in the fluff (or the layer of white cement we call "pow" back home in Oregon).
But if you held a squirt-gun full of blue Powerade to my head (the horror!) and made me choose ONE ski for the rest of my life, I'd blurt out 112mm underfoot in an instant--and what's more, that 112mm underfoot ski would be the Moment Deathwish.
Stiff. Rowdy. Powerful camber for railing high speed turns. Nimble mid-twenties medium turn radius zips through aspen glades, yet can open it up in wide-open bowls. Generous shovel. Generous tip and tail rocker. Nearly indestructible edges and a hardy topsheet. The Deathwish is THE rig.
I have the privilege of not only living in the American West, but also the ability to own multiple pairs of skis in my quiver (Black Crows for touring, Moments for tele, 4FRNTs for all-mountain debauchery, Armadas for deeeeep days), but if I were to, I don't know... Have to bring only one ski to Cham or Japan or Tahoe for a season, the Deathwish is the one. I appreciate having a wide selection of skis to choose from, but the Deathwish would be my weapon of choice.
Just a bit of rambling and two and a half cents from yer favorite BC ski dweeb. Carry on.