Depending on the trip I use alcohol (pop can stove) or butane (Pocket rocket).

Most bike tours I use the alcohol stove because I pretty much always fly to the start of my tour and generally tour far enough to need to buy more fuel along the way. I have had much more trouble finding canisters than alcohol along the way.

If I were to leave on a trip from home and wanted or needed to carry all of the fuel for the trip I'd go with the butane stove.

Alcohol is heavier per btu but since I buy in small quantities along the way and the stove is lighter, it winds up being less weight carried. If the time between restocking options gets longer the butane option gets to be lighter. That seems to only be the case for me on longer backpacking trips and not road tours.

Both stoves work great once you are used to them so I take the one that makes sense for the specific trip based on weight and fuel availability.