I run the dunlops...M/T Maxx Traction (I think Goodyear also has a new one that is similar. They are the same company at the end of the day). The Maxx Tractions are more aggresive than a typical AT tire, but not as aggresive as some MTs. There is generous siping which make them managable in the rain (I have yet to try them in the snow). They are a 10 ply tire, so airing down is a non issue. I keep them at 52psi cold.
I can say that I have only driven 90 miles/hr once, and don't recommend it with these tires, but with the Nittos, no problemo. They do react like a mud tire on road which means you need to alter driving style some. The noise is minimal, but there is a hum.
As a final note, I get oodles of comments on the tires, where as when I had AT tires on, no one seemed to notice. Not that it is of any concern, but people think they are all out mud tires and do present me with comments on a regular basis. The all-aroundness of this tire make them the right choice for me.
One thing to think about with this size tire is that you are going higher than stock, and considerable skinnier. I know it is only 10mm, but it does make quite the difference. I decided to go this route because of the snow and mud that I drive through. If I was in the desert or wheeled in dry rocky areas, I probably would have stuck with stock width and more tread.