It really doesn't matter
On my last trip I took a lada 2104 around central asia. Anyone who has been at the shoreline of the Aral lake in Kazakhstan knows it takes some beating getting there. The lada did it without braking down a single time (on a 20k km trip, including several thousands of dirt).
As long as it's not a too fancy lots of electronic gismo vehcle, I don't think it matters. I wouldn't hesitate taking a well maintained suzuki samurai, patrol, G-wagen, landrover, toyota, and a few others on a big trip, as long as I feel thats the vehicle I want to the trip with.