I drive Grabber AT2 on my 16" Doka. The tyre looks very nice (fat) and also is great offroad. The loudness depends on the pressure but the sound is nice and not too loud. I drive it every day.
I drove the old Yokohama Geolandar and it was really great on road and not bad off road. If your roads are wet most of the time, this is the perfect tyre - I am sure the new Geolandar AT is even better than the old one.
You can see all the tyres at
http://www.offroadreifen.at with all the sizes and some details. It's an Austrian site but gives a nice overview on nearly the whole market.