Work out how often you're going of road with it. Work out how hard core off road you want to go. Work out how much you like comfort around town, and how often you drive around town.
Early Hiluxs are uncomfortable trucks that have kidney belts that fall from the roof when you hit bumps. Sierras do it hard on the highway. Vitaras are nicer, nut you sacrifice off road ability.
I own a DiD TD Pajero. :)