I've always been a fan of my little MSR whisperlite international. I've burned white gas and unleaded fuel in it, with unleaded being my preference. When you think about it, it makes sense financially. A gallon of white gas costs around $7 (last time I bought it) which is quite a bit more than some 87 octane, even at the super high gas prices of last year.
Plus it makes sense logistically too. In the military they make sure that all (or most) of their vehicles use the same fuel, that way they don't have the hassle of needing twice as many refuelers. So why not pack a couple gallons of white gas, but then know that you have diesel or unleaded fuel to fall back on in an emergency. Or just pack an extra couple gallons of diesel or unleaded and skip the white gas.