I have used gasoline stoves in the past including MSR Whisperlite, the old Optimus 8R box stove, and the original Coleman Peak 1. Nowadays I generally just take a Jetboil MiniMo. For just boiling water to sterilize it, make tea or coffee, or rehydrate freeze-dried meals a Jetboil is very fast and efficient unless you are in very cold conditions or high altitude where an isobutane cannister just doesn't work that well. But I also have the Jetboil fry pan and with practice I can use it to cook sausage patties or links and eggs over easy, or even toast (sort of) bagels. The MiniMo has much better burner control and can simmer much more effectively than most of the Jetboil burners. But I have also an MSR Pocket Rocket that I sometimes bring along as a backup. I use the coffee press made for the Jetboil MiniMo to make coffee.
When camping, mostly canoe camping these days, I just don't care to take the time to mess around building fires and I really don't care for cleaning up smoke-blackened pans or pack them with my gear.
If I ever find myself preparing for an extended backwoods trip in which I did not want to carry a bunch of isobutane canisters (full or empty) I might look into a small Kelly Kettle like the Trekker or some similar biomass stove.