265/75R16 KM1 at 45psi.
Various conditions alter the pressures I'll run and where I run them, but every single number on my chart is higher than most would consider. Snow and ice pressures cannot be charted. Dangers are increased, and every condition is different. Pressures in extreme cold weather environments vary drastically depending on what I see, hear, smell and feel.
I run higher pressures than average with a tire that's sort of in the middle, so far as width is concerned.
That shows you that I value a solid grip on terrain, and a tire that will bite in and try to find solid ground, while being short enough to maintain good lateral stability and a progressive, predictable release at high pressures. Given a choice, I'll lean toward a narrower tire, a stiff sidewall, and high pressures.
The size I use is a popular size for a DII, but it's a good size. I fit different tires for expected conditions at times, but this is the default rubber.
Essentially, I go hard and narrow. Others go fat. It depends on what you do and how you do it, as well as personal preference. There is never a perfect choice. Every tire is a compromise.
Cheers,
Kennith