Yeah, Hikin' Jim is pretty good about his stoves. I think he was planning a PCT hike this year. So, he should be well aware of the current conditions. I tried to bring the subject up on the PCT list, but got hammered for saying the same thing HJ is saying about alcohol stoves.
Anyway, alcohol stoves are OK, except if they get spilled. Then there is no stopping the flames in an area that is dry and without good water supplies. As carefull as anyone is, a stove gets an occasional dump, even if it is only once every three or four years. I believe the state and national forest people are doing the best they can and still alow *any* stoves by banning the most dangerous. I like alcohol stoves for short 3-4 day trips, too. Coupled with a cone, they are a good way to boil water and do light cooking. But from the authorities way of thinking, the occasional spill would quickly turn into two or three fires per year. So they ban them.
Esbit is not as bad. But several "stoves" are little more than a rock or piece of aluminum foil on the ground. Again, these are pretty safe, but could be left to get water, take a dump, or whatever…with predictable results.
WG for through hikers is a bit much for weight. Through hikers rarely go for more than 5 days without resupply. If they can resupply that often, they don't need the efficiency of a SVEA or other WG stove. Kerosene is about the same, but it costs a bit more to prime them.
(My trips are usually 1-3 weeks in duration, a thru hiker wouldn't do that.)
Canisters are easy to use, generally stand up 2" from the ground (more for toppers) and are easily shut off, this not lending their fuel to any fires that may be caused.
Wood fires/stoves have lots of sparks, these are worse than alcohol, in my book. They always seem to leave a scorch mark whenever I used them.
I don't really care what I use, but a canister seems ideal along the PCT.