Stay tuned for a head to head review of these two stoves on the ExPo home page. I used them side by side and alternating on various trips over the last 6 months (That was as soon as I could get a pre-release 1L Reactor) and there is a hands down winner.
I've used my jetboils in Alaska on our 100 mile river float trips in driving rain, much stronger than 12mph winds with no issue at all. That's at close to sea level. Boils just fine every time. I live at 5k feet and play up to 10k feet. I've noticed boil times extend a little up near 10k feet with the jetboils, especially if its cold. If your worried about sipping fuel, the reactor seems to use less per boil from everything I've read. I own 3 Jetboils and a Primus(almost identical to jetboil but with a crappy pot attachment). They have treated me well with no failures whatsoever in the 9 years I've been using them.
That said, I really like my Kelly kettle and the $15 swiss ranger stoves I've bought from cheaper than dirt. I can boil 2 cups of water with a hand full of mulch in a little over 4 minutes. Can't beat that.
I've been using a Jetboil for years since the gen1 version and love them. Currently have a Ti Sol model that I make coffee and tea with while the food is cooking on the snowpeak Baja burner. Also take it sometimes on quick out and back road trips for hot drinks and food if I'm planning on camping at a park rather than a hotel or B&B.
2011 Taco TRD-OR
ICON Stage 3 Suspension, ARB Deluxe Bumper, ARB OBA, RI Lights, Softopper, ARB 2000mm Awning, BajaRack, ARB 50QT Fridge & Slide, Sleeping Platform
Love my Snowpeak LiteMax Ti...weights nothing but throws a LOT of heat!. Works well all the way up to 13000-14000ft, though it does take a bit longer to boil water up there, but that is to be expected. Has works great in strong winds as well.
KG6BRB (Radio Installed finally, now trying to learn to use it)
2006 Tacoma Access Cab (SLOW build thread: http://www.expeditionportal.com/foru...ad.php?t=36561)
I read it on Back Packing Light.com, here are some very interesting quotes,
# The best performing upright stove (Snow Peak GST100) produced something like 5 ppm at a simmer, compared with 300 ppm for the Reactor.
# The best performing upright stove (Snow Peak GST100) produced something like 21 ppm at full bore, compared with 80 - 100 ppm for the Reactor.
# Two other heat exchanger stoves tested (Primus EtaPower EF and Jetboil GCS) produced something like 3 - 5 ppm at a simmer, compared with 300 ppm for the Reactor.
# The best performing heat exchanger stove (Primus EtaPower EF) produced something like 13 ppm at full bore, compared with 80 - 100 ppm for the Reactor.http://www.backpackinglight.com/cgi-...5EEM_V5TvXL7jwOne cannot help feeling that MSR - or at least the company's lawyers - are really, really worried about this stove. I have never before seen such a density of prominent alarmist warnings on a single stove. We know stoves have to be handled with some care, but the warnings’ effect simply convinces me that MSR is really worried about this stove in particular. So where does that leave me, the customer?
I would never use the MSR reactor in a confined space.
The good news is that it is extremely wind resistant, so I don't ever need to.
It's my favorite stove for winter/snow-melting duties.