Easy choice, the sorento i have (3.5L) is a dream in the desert, i couldn't beleive how good it coped after owning a wrangler and being an auto. I only know the smaller Nativa and they really struggled in the desert.

You wopuld think that Pajero is underpowered but i have driven them many times in desert and never had a problem.

Trail blazer - avoid american 4wds, not ideal for desert. A/C pack up.