IF you want to use iso-butane (canister) stoves in cold weather you really need a remote canister stove like the MSR Whisperlite Universal in its canister mode. The canister is held in a special stand upside down at about 60 degrees so the liquid fuel goes into the fuel line and over to the burner where it is vaporized. The MSR Whisperlite Universal can also be set up with white gas (petrol) or kerosene from a MSR furl bottle W/ pump and different burner jets, one for gas, one for kerosene. (Preppers love this multi-fuel stove.;o)
---> The very most efficient Titanium sheet wood burning stoves are made by Trail Designs. Their Tri-Ti and smaller Sidewinder ti stoves have an optional Inferno insert and bottom screen that make the stove transform from an ESBIT or alcohol burning stove into a very hot "gassifier" type wood stove that burns gasses given off in initial combustion by re-circulating them.
The Trail Designs titanium stoves, like the heavier and non-collapsable Canadian made Bush Buddy stainless steel stove, are very hot burning and leave white ashes. But with TD's stoves you must get a pot (from TD) that is made to fit the stove to get maximum efficiency. TD does make some stoves to fit popular pots like certain Toaks ti mugs. In winter I cook with the 3 cup pot made for my ti Sidewinder stove but I use a larger 2 qt. JETBOIL pot with bottom heat-absorbing fins for better efficiency when melting snow.
For winter use, especially melting snow for drinking and cooking, wood stoves are great as long as you have a good source of fuel. The gassifier stoves I've mentioned only use finger sized sticks, which are easy to find and break into the correct length. Why carry fuel when you can get it at your campsite?