I run them in the 33x12.5 flavor. They are quiet enough on the road that I can't hear them over the wind at highway speeds. Tread life is exceptional too. I'm at 30K or so and they still have 60-70% tread left.
I doubt you care about snow considering your location but just in case I've never gotten stuck and that includes the 2-3' snow dumps we got last year here in Denver. I drove them through similar storms in the mountains. I've run mid level trails out here in CO, lots of rocks, occasional wet rocks and no issues. I didn't get stuck but neither did the guys running BFG AT's.
I'd guess mud is more a concern for you, and like any AT they'll turn into rollerballs but if noise and tread life are your major concerns I don't think you'll be disapointed.