I had a 10 year old MSR pocket rocket, which did the job, but found it to be quite unstable. whilst cooking in the snowies, my pot tipped over in the vestibule and spilled food all over the tent and nearly burnt my $1000 tent! gave up and searched out other options.
Couldnt decide on which stove was best for my needs after reading conflicting reviews online, so i grabbed a few different systems: a trangia system, msr Reactor, MSR XGK EX, optimus nova, and a second hand whisperlite.
after a year of using them, heres just a brief quick run down:
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Trangia system not my style since it doesnt get hot enough. but its a light and neat all in one package. takes too long to cook rice. never tried it in the field, just sold it after an unsatisfactory test it in the kitchen.
XGK i'd take this to everest, but since i'm not going to everest, unlikely i'd take this anywhere below 6000m or without snow. its just like a jet blaster! wayy too strong, wayy too loud and cant easily simmer leaving my pots all burnt even at the lowest setting. i guess you can refine your techinique. methods like holding the pot further away, pumping less air into bottle, blah blah blah, but i cant be bothered when theres a better stove for the job. The build finish is probally the best out of all my 11 stoves and will probally out live my outdoor hobby. boiled 1L in 6 minutes 30sec (8 mins at 0 degrees snow)
reactor - most expensive, but hands down, boils water the fastest. specs say 3 minutes, but i got 2 min 23 secs!
also gets the hottest, even more than the xgk due to the concentrated nature of the flame. worked faster than the xgk on snow at -3 degrees even tho its a canister? maybe because you dont need such a build up of pressure inside the canister to work well. neat package. if i only boil water/ snow, then i'd use this. its even faster than my electric kettle at home!
optimus nova: now this is my new favourite
i preferred this over the nova+ due to the stability issue of the nova+ when turning the knob. nearly as powerful as the xgk, much more quiet, can actually simmer without a phd in stovology, and folds down small. build quality is nearly as good as the xgk but looks plain ugly (who cares). easy shake to clean the jets, and dont need to change jet with different fuels unlike other multifuel stoves. this reason alone, i rule out the whisperlite to take with me on my next trip. the case it came with is very good quality unlike the crappy msr pouches. boils 1L - 6m 15 sec
after buying all this, i found that i could actaully get a stabilising stand for my pocket rocket. this thing simmers fantastically, and i can heat up marshmellows and grill squid!. I also tested a cheap $10 chinese copy from a friend purchsed from ebay, which was nearly identical to this.
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CONCLUSION:so $1000 later, and 1 year testing all these stoves, i find myself going back to the pocketrocket + stand. then i got an msr 2L pot with grills on the bottom so it doesnt slide off. the cheap chinese copy is easily recommended for $10-20.
if doing a quick trip, want quick simple food where i'm only going to be eating freeze dried food or boil only - reactor for sure~! works great with the army Rat packs.
if i'm going overseas, where obtaining a certain fuel is questionable, then easily the NOVA.
hope helps some people make a decsion.
one thing bad about the canister, is that i have trouble estimating how much fuel i use, and how much remaining without scales to weigh it. with liquid, i know exactily i will need xxxmL for xxx hours of cooking and plan accordingly.