I have:

Svea 123
Snow Peak Giga Power
Olicamp
MSR Whisperlite International
Gaz Cartridge Stove
Jetboil (4 of them)

No longer have:

MSR XGK
MSR Dragonfly
Hank Roberts Stove
Other Forgettable's

For boiling water only: Jetboil or Olicamp/Pocket Rocket with XTS Pot (works like a Jetboil).

For cooking: The MSR Dragonly, Whisperlite or my 43 year old Svea 123, especially with a Bunsen burner wire mat to disperse heat.

I think the Jetboil is one of the best backpack technologies of the last 15 years.

“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery