Robert and Bob, check out Roger's Xtreme review:
"This stove is rated to 4.1 kW (14,000 BTU/hr), and that is far more than I shall ever need or use, and more than most any other light stove I have seen. Suffice to say that this stove will match or exceed most any other stove I have tested for power output - and that does include white gas and kerosene stoves!
Popular myth has it that you must have a white gas stove to get good snow-melting power, and that canister stoves don't have the power. Well, I have yet to find a white gas stove which can put out 4.1 kW (14,000 BTU/hr)! As discussed in Selecting a Canister Stove for Cold Weather Backpacking Part II: Commercially Available Canister Stove Systems, the butane/propane fuel used in canister stoves is not fundamentally different from white gas as a fuel. The canister stoves just have more power! Perhaps I should add here that the myth probably comes from attempts to use an upright screw-thread canister stove, or even one of those old Bleuet stoves, in the snow. They are not winter stoves, but this one is.
While the Coleman Xtreme can roar, it can also be turned down to a very low simmer."
I have used white gas with friends - not a fan of the noise or smell, will use it when I have to. Have only seen one flare up, but have read and heard about a good number of singed eyebrows and tents/jackets.