I like the hummer H1. I can't stand those H2's and H3's they're too small for me... I sat it an H2 and an H3 at a dealership recently and they're too small. I prefer the H1 myself because they're bigger and they're solid.
With gas prices THIS high, I would say none. However, I'll play along and chose Land Rover, because they ARE the original 4X4 company. The Range Rover goes way back.