Gizmodo’s new outdoorsy site “Indefinitely Wild” has a boil-test on the MSR Whisperlite vs. a FancyFeast alcohol stove.
Check out the test video and the specs on both stoves at the title link above.
I’ve had one of the MSRs ever since they first came out with the original version back in the 1980s. It’s a great stove. But it is heavy. I’ve been playing around with a whole bunch of different versions of the alcohol stove myself, and I’m finding them to be a pretty satisfactory alternative at about a 10th of the weight.