one downfall and something to considered about the 4runner is body damage. with a pickup you can easily replace the bed when it gets beat or even the cab. there available and reasonably  priced. finding a decent first gen runner body, probably not easy or cheap. then theres the top, the trails im used to are not  friendly to the glass and it rains 9 months outa the year where im at so theres that to deal with.  in my opinion pickups are better suited for serious trail use  when keeping the body intact is part of the plan. atleast where im at