I've done a lot of backpacking and backcountry hunting. Have used or been with someone who is using just about every stove on the market.
Many are great, and sometimes the difference is splitting hairs.
But- I LOVE my MSR Windburner Personal system.
It really does a great job, and boils fast. I've used it as high as 13+K feet, in pretty stiff wind.
I love that it is self contained. Everything fits inside the canister- fuel, stand, stove. Then the canister is what you use to heat & eat. I also have the small frying pan that can attach, which makes it super versatile if I want to bring it along.
The Windburner is perfect for 1-2 people. Although, I've used it (and nothing else) for 5 people before. Everyone just had to wait a few minutes, and not eat at the exact same time. No biggie.
The MSR Reactor system is also very good, and has a variety of sized pots you can attach. If you are using 1 stove for multiple people, the Reactor or Windburner Duo is the way to go.
The MSR Pocket Rocket is more comparable to the JetBoil MightyMo. Both super lightweight. But I prefer the systems that are all-in-one, like the Flash/MicroMo/MiniMo and Windburner.
Having done the JetBoils and MSR's side by side numerous times- the MSR's are a touch faster, and the pot is better designed (much better handle/insulation that makes handling without burning yourself easier- though I think JerBoil has improved their pots since I last used one). The MSR also handles winds much better in my experience. Much better.
So, when I hit the backcountry, or do anything other than car camping- I have my MSR Windburner.
Just my .02.