Brucey wrote:there is no perfect fuel, with ideal combination of
- calorific value (fuel consumption)
Gas is OK but there is no really universal standard for the cartridges so availability is poor in many places. A significant problem (for all-weather camping, not so much for what you will be doing I expect) is that in the cold it can cease to have enough pressure in the cartridge. The canister cools itself as the gas is used and it can take an age to boil a pint of water if the cartridge is cold.
I have used every type of stove that there is (for hiking), and my preferred fuel is gas.
It's the safest, it's stored in a sealed container, you do not get liquid spillages which could ignite or contaminate pack contents. It's theoretically possible to create an explosive mixture, but that would require a very specific combination of unlikely circumstances.
Cold weather is a non-issue: a liquid-feed gas stove with a vaporiser tube will work happily down to -20C
If interested, I have a published article on the physics/chemistry of gas mixtures in cold weather https://backpackinglight.com/effect_of_cold_on_gas_canisters/