Difficult, I would have said Patrol especially if they made it in a dual cab ute but that's not on the cards. I've had two 4x4 wagons and now I'm really enjoying a ute so I'd go a VW Amarok (great reviews) but there's not many accessories around for them yet.
A mate at work has current Ford Ranger in 3.2ltr 5 cyl diesel and so far is very happy, however his previous Ranger was a shit box, it's a wonder he trusted going that way again, BT50 is just plain too ugly for me.