I have the Dunlop Radial Rover A/T's (Dunlop recommended to me that I go with the A/T's over the RV's because the A/T's are the updated version?) in a 255/85. I have only had them for about 1. 5 months now, 8K miles. They handle pretty well, the tread is aggressive enough for my needs (occasional offroading), and they are warranteed for 50,000 miles. At first I thought they looked a little funny, being so skinny for their height, but that's because I was used to the 285/75's, looks good to me now. I got them because I heard good things about them in the snow, but I won't know about that for a few more months... . So far they have treated me well.
BTW, I found some online company (can't think of it now) selling them for $107 per tire, printed it and brought it to discount tire. They matched the $107 price, down from $141...