I've always used gas or multifuel stoves since I started backpacking in 1963. For trips from home, I use Coleman fuel. For distant trips especially involving air travel, I use pump gas. Usually one can just take a hose down to ground level and pour what's left in the hose into a small container. When I toured on my motorcycle, I could drain gas out of the tank into a small fuel bottle. I've also poured gas from my fuel bottle into the bike's tank when I was low on gas. A great advantage of gas stoves is the universal availability of fuel, speed of cooking, and general convenience. Svea 123 and Optimus Nova are my faves. The Optimus is a multifuel but I've never burned anything but gas or Coleman fuel in it.

To fly with gas stoves and bottles, one must clean the stove well enough that no odor remains. This eliminates the Svea 123 because it has a wick. A dishwasher works really well for my Optimus. For the fuel bottle, an easy thing is to fill it with vinegar and label it so.

In National Forests and Parks during fire danger, it's illegal to use a stove without a shutoff valve. In any case, I really like having a shutoff valve.