I am on my second set of Nitto Trail Grapplers on my truck. Granted I'm running a 35" tire in Load range E but I've had Nittos on my Suburban as well. For being on HEAVY vehicles and towing A LOT, they wear very well. My Trail Grapplers aren't loud at all and actually fall between an A/T and M/T as far as Nitto is concerned. They do have their own M/T tire and it's super aggressive, more than what I would use for daily driving. As long as I keep them balanced and rotated at about every 5K they are really quiet and comfortable.
'99 Skeeter 186SX SC, 150 Yamaha VMax
'99 Chevrolet Silverado 2500 4x4