Over the years I have had almost all stove systems:
#1 Diesel Stove - not so good if you do not need lots of heat all the time
#2 Propane - on several boats, with double shut offs and a manual shut off. Never an issue but the steel bottles rust. New composite bottle or aluminum bottle solves this and makes dinghy/to the fill station carry easier.
#3 Natural Gas - safer as it rises but it means storing two or more "scuba bottles" at 3000 PSI or so. Heavy and they did not last long in use. Had them on a Sea Dory 36 (first hull made).
#4 Alcohol, safe but I hate the smell, even a little makes me sea sick
#5 Coleman camping propane stove in the cockpit (with drains). Cheap, effective but wind is an issue, especially if you hang it on the rail/out of the shelter of the cockpit coamings.
#5b I also have one and two burner Coleman camp stoves along with lanterns that run on white and/or regular leaded gas. I would use these ashore such as at Lake Powell as that means one less fuel type if running a gas outboard.
#6 Bremer Sea Swing/Force Ten Sea Cook. I finally found one. It is my #1 stove, especially as you can add multiple hanging locations with spare brackets. Mine uses the one pound green propane bottles or an adapter hose. I have used the white gas/kerosene Primus inserts, too much work for me. Same for the Sterno insert.
#7 Sterno stoves, I have to eat the same day I light the stove!
#8 Electric burner with a Honda 2000. Not a bad choice and very safe. I also have used an electric fry pan.
#9 Microwave on the Honda 2000 - great for what it is intended to do.
#9b Black and Decker old style toaster oven (I love mine, down to my last spare). If I buy a new one it will have a convection fan.
#10 Wood stove - I may try one of the Cubic Stoves
http://cubicminiwoodstoves.com/, nice design and not too costly but on one boat with a wood fired heater, backdrafts meant hours of work to clean up the interior (I know about barometric/draft devices but everything has is failure point). I love the Navigator stoves but they are not air tight and very pricy.
#11 Induction burner. Only one I have not tried but I can see where it is a better choice for some over a $12 electric hot plate. Looking into the cookware issues first.
#12 Charcoal or wood fired bar-b-q, fine but limited and I hate dumping ashes into the water. All of them: the Egg, the Hibachi, the Magma, the Folding Stainless Thing, the Rocket Stove, the Scotch Box, and on and on are in my garage of have been at one time. Best left in the dry camping box for truck based land adventure.
#12b Just to be sure I miss no alternative, cast iron dutch oven or as we do on river rafting trips, the same item in aluminum for boat use.
#13 And I already know it is not that safe but I use the little table side butane stoves every summer for four weeks when we horse camp. We buy the cartridges for $1 at the Korean market, the stove for $17 and you can toss it away at the end of every season and buy a new one. Some folks are dangerous with a fork in their hand. Seat the cartridge right, keep the pan smaller than the top of the unit so you do not reflect heat onto the cartridge, and I guess you could even use a soap bubble check for leaks if you wish. CanCooker has a model that also uses a propane adapter/hose.
#14 Candle cookers and other low tech devices. A notch below Sterno stoves and only of interest to Englishmen and a few fellas from Poland.
There, another exhaustive (and exhausting) post. And my number one choice is? Honda 1000 or 2000 (I have a 2000). You can run the smallest water cooled AC with the Honda 1000, an ARB cooler (the best hands down), and/or a throttled down Induction Cooker (same for a hot plate). Move up to a Honda 2000 and you can run about anything, add a Polar Cub/Mach AC unit with soft start adapter, a second battery charger, a Scuba compressor or ???
My second choice is my Bremer Sea Swing/Sea Cooker as it is safe to use while underway due to the gimbal feature.
That's all folks.
Bob Jarrard
PS: Another year without a C-Dory, how long can this go on? BJ