To be fai
To be fair, few tires are gonna do great working over mud slick rock. Can't get grip on the rock and can't dig into the mud.
I am currently pondering having a go at some taller but still skinny Michelins that are available as mil-surplus. 325.85R16 XMLs. More aggressive than the XMLs. These run 38x13. They ain't ag tires, and they ain't highway darlings, but for my uses they *might* turn out to be a good middle ground. They will be noisy and I don't expect a really smooth highway ride. They are heavy, but once you go that large you are accepting that you are not driving a sports car anyway.

They will be virtually indestructible even on the Dalton or the Denali Highways as well as the rockier trails I run. The biggest question in my mind is just how well they will do in the softer stuff. I have watched a couple of rigs running these and doing great compared to anything less aggressive than Bogger.
From what I have seen from the handful of outfits selling them, there are actually two different tread patterns (older and newer i assume). One seems much more mud suitable than the other.
Mark...