If you can, why not select "all of the above." I have both canned butane and bulk propane, as well as some white gas, and my stove can run on the unleaded gasoline that in my car. My mainstay for survival (California conditions - earthquake likely, but not extreme cold) is propane. P L is right about propane on a boat - it is extremely hazardous, but so is liquid gasoline. I really prefer refillable bulk propane cylinders - cheap, especially to refill, and relatively easy to service and maintain, but study up on this stuff. There are important safety practices that must be followed in order to avoid problems.

Basically I adapt my camping gear for at home, in place survival, and over the years I have acquired liquid fuel backpack stoves, Coleman two burners, superlightweight butane stoves, and alcohol stoves. I keep reasonably large stocks of fuel for most of these, since I am likely to encounter situatiosn where each would work best. But bulk propane will be my prime heat source when the Big One hits.