picking out an suv

[chisness]

i'm bored and won't be getting a car for a couple years but am thinking about which ones are best bets.

things it needs to have:
1) navigation system
2) leather
3) center arm rest (not the ones that slide down from the side of seat)
4) not a luxury make (e.g. lexus, mercedes)

i was looking at the envoy denali and the volkswagen touareg as initial possibilities. i think i'd prefer an SUV but would take non-SUV suggestions.

also, better gas mileage is probably a plus. are the SUV vs. non-SUV mileages very different in general?