have used the whisperlite for many years, it works for my needs, although gets a bit sooty, so it was always put in a plastic bag after cooling and stored in my pot. In europe used the blue-sealed propane thingee stoves that in France anyway, were very easy to find in stores. Cleaner, handy on and off (no preheat procedure, which doesnt bother me much anyway withthe whiisperlite) but these are easier. I didnt worry too much about throwing away the empty ones, I mean, we are travelling by bike here, so are pretty low footprint.

the International, being able to use unleaded is great, there are always gas stations around.

the comments on stableness, and physical size are pretty important, just because we are usually cooking on the ground, and over time I got reaally aware of keeping space and weight down for bike touring.