no one has made mention fo the yokohama Geolanders / Pirelli Scorpian AT's and normally they are a tyre people RAVE about?
personally i have the yoko's and pirelli's and the pirelli's are wearing so much better on & off the road. grip in the wet.. well what wet? we've had floods and around corners and along the straights you wouldn't know it's been raining with the pirelli's on. - yeah okay offroad they aren't the best, the clog really fast and no self cleaning - thier not a mud terrain though so why would they.
as for the yoko's i dont' like them it's personal preference for me, i find them wearing allot 'faster' under the same pressure and the same weights in the car. (vitrually driven the same) - offroad they are probably +side of average i'd rate them above the pirelli's but only just as they don't appear to clog up as much!!!
otherwise i've also had the cooper ST's and they are amazing for longentivity, (you pary for that though) - they lasted alot longer than any other tire i have had, and can withstand a reasonable beating, again though i would rate these above the pirelli / yoko's at they are a bit of a more aggressive AT
good luck and let us know how you get on