Regarding stoves, I think there are two general categories:

Alcohol stoves:

- Very lightweight and simple. You can make one yourself. 1/3 the weight of a PBFS. Smaller too.
- Flame weak enough to simmer
- Easy to clean
- Quiet
- Cheap

Petroleum-based fuel stoves:
- Some models can burn several different kinds of fuel (white gas, kerosene, gasoline etc)
- A given amount of white gas boils 50% more water, twice as fast as the same amount of alcohol - less fuel to haul
- Only some higher end models permit simmering
- If a model uses a fuel cartridge, it needs to be returned for recycling when depleted

I have a MSR XGK EX usually running on unleaded gasoline. It boils two liters of pasta water pronto.