Well this thread has certainly rambled. To recapture.
The question was Methanol or Ethanol in a non-pressurized alcohol stove? The answer is either works, ethanol (aka denatured alcohol) has a higher heat value than methanol (methyl hydrate). For heating small quantities, a bowl of soup, a pot of water for coffee or tea, frying an egg, there is probably not much difference in the time to cook. As the volume being heated increases, say a spaghetti pot with a gallon of water, the differences will be come more apparent.
If handled properly, alcohol is a reasonably safe fuel, but it does have some limitations as it burns invisibly, spilled fuel can catch fire and it won't be noticed until the boat starts burning. Ethanol also works to soften gelcoat, remove wax, and cleans up uncured epoxy.
In the learn something new every day department, Coleman "white gas" is also known as naphtha which is more volatile and explosive than plain old unleaded gasoline and can be used in certain Coleman stoves.
Finally, as I understand and recall the petroleum fracking column, Jet Fuel is essentially highly refined kerosene, which is highly refined diesel fuel, which is highly refined #2 home heating fuel, which is cleaner than bunker fuel used in freighters.
Did I miss anything?