Those are the tires I prefer. If your getting the LTX Mud Terrain for highway traction (snow/rain) you'll do better with the Triple Treads. The only downside to the triple tread is the dirt traction. I didn't use my Tundra on the dirt very often so I didn't care if I lost some of that capability. They rode more firm than OEM, but I liked the change. I would expect the LTX to be closer to minivan tire ride.
I'm getting the LTX M/S, since we get lots of snow up here