I just got a set of them. (The 31x10.5x15's) So far, so good! Nice looking tire and immediately -- and I mean IMMEDIATELY -- I could tell they were a smooth ride on the pavement. Very quiet and very, very smooth.
We got a bunch of snow in my neck of the woods last night (convenient time to upgrade the rubber, eh?
) and they've performed very well on snow-packed roads. They have a very confident grip and very good stopping power.
They get my vote. I'm very happy with the purchase.
And FYI, I too, had the 30x9.5's before these. My suspension is still stock and they fit nicely, and look much, much better.