A huge advantage of stoves is convenience and speed, especially when thing get damp and cold. You can have water boiling under adverse conditions in the same amount of time it takes to get a wood fire started. A wood gassifier has some attraction, but you still are dependent on dry wood quality and availability. In really dry, incendiary conditions, nothing is as safe as a gas canister stove, except no stove at all. Just eat your Gorp and be quiet.