Hi bigmothertrucker,

I personally would forget about alcohol stoves because of the weight penalty on longer periods out in the wilderness/bush. For anything over a 4-5 days, alcohol stoves become quite inefficient due to the specific energy properties of the alcohol fuel. The same situation applies to Esbit or hexamine fuel stoves. They are excellent for 1-2 days though.

Roger Caffin's analysis of the most efficient stove which gives the best performance for the lightest weight over a 5 day period is the gas cartridge stove.

http://www.bushwalking.org.au/FAQ/FAQ_Efficiency.htm

If boiling water rather than actual cooking takes priority then the Jetboil stove is pretty difficult to beat.

http://www.sailgb.com/p/jetboil_camping_stove/

Although MSR Reactor stove may have the edge on the Jetboil

These stoves use flux ring heat exchanger technology and claim to boil up to 50-60% more water for each gas cartridge used.

http://www.msrgear.com/stoves/reactor.asp