If going for over two weeks I will take a canister(sno peak giga is my current favorite) and a pepsi can stove. My reasoning is that if I want to make tea every morning one bottle of heet will last me over a week. And most of my meals are one pot boiling water efforts with fuel saved by using the insulate and soak method.
But sometimes I want to do a little more elaborate meal, so will use both, one to cook the rice, another for vegy/sauce/whatever. Or, sometimes it is to windy to use the pepsi stove. They do have some limitations even with a windscreen. Doing it this way means I save a cannister for a loooong time. On a shorter trip I take whichever I feel like.
I have also used wood, a swiss army engineers stove. smokey but it works.
Once in the spirit of inquiry I tried making a preheated dual chamber alchohol stove. I feel that it has some potential, but I need to make it out of beefier materials, as it melted itself, part of the pot, and puddled a lot of aluminium over some high duty firebrick.
as I say to all my engineer friends, sure, it works in practice, but can you overthink it and give it to many moving parts on the bench?