User Review: Esbit Pocket Stove
Size, weight performance. The krauts used these stoves on the Russian Front during WWII (what else do you need to know)?
Use propane or butane for car camping, but the Esbit can't be beat in the field. Use hexamine or trioxane fuel tabs (get em at surplus store) and don't worry about expiration date.
If you pay more than $3 for an Esbit you got ripped. The leftovers from WWII and the Cold War are still working just fine.