Yup, this is very similar to my experiences.
For fuel efficiency, a HX (heat exchanger) pot & lid, plastic bottle and SVEA stove have been the most fuel efficient stove I have ever used. I burn slightly less than 1/2oz by volume per liter or oz per day. Note that the density of a 12oz bottle of fuel is only .08 (as is alcohol.) My 12oz soda bottle weighs about 10oz. I need about 2.5 liters per day, coffee(2-3 cups), oatmeal(2 cups) in the morning, something for supper(3 cups + simmering 10min) and cocoa (1-2 cup.) Total weight for 12 days out: 19oz(stove) + 10oz(fuel/bottle)=29oz starting and 20oz final.
Canister stoves are usually quite close initially. (Just for comparison: Coleman F1+2-227g canisters=2.5oz(stove)+2(8ozfuel+6ozcan)= 30oz starting and 14oz final.
Alcohol weighs more initially the either, but less finally. 1oz(stove) + 32oz (fuel and bottle)=33oz initial, 3oz final.
Esbit is close to the same as alcohol, about 30z + 1oz stove. 31oz initial and 1oz final.
So, it depends on where you want to save weight. Using a simple average, Alcohol stoves are lightest, then canisters, then WG. Using Initial weight WG, canisters and Alcohol.
Practicaly, it doesn't really matter for a couple weeks out. They all weigh close to the same. Compared with 25pounds in food, there is no difference, really. I choose the lightest initial weight, knowing food consumption will lower each days carry weight by a couple pounds. (Not quite accurate, I need 1.2 pounds per day. But most agree ~2 pounds per day is fine.) And it is far simpler to use the same stove for everything, even if I pay in final weight.
With other stoves, it is easyier to cook, and simmer. Not something the Jetboil is really good at.
At this point in time, JetBoils are heavy for what they do. The Olicamp HX pots, or a home made one, does as well on any stove. Using a wind screen/heat trap STILL helps. It helps ALL stoves. Using tricks, it is easy to booste all the stoves to better performance. They need to strip the stove system down to make it worth while, in my humble opinion. The pastic's need to go. The pot needs to be lowerd and made more fuel efficient, too. The added diameter would add flux ring capacity (heat exchanger) without sacrificing on weight. The closer to spherical a pot is the better holding capacity per weight of the pot. Overall stability would be improved, also. And, it would be easier to clean after cooking a trail stew. There is a ways to go with all pots. The standard burner could be improved by supplying a burner with a lower heat output, giving the heat exchanger more time to do it's job. The volume heated would go up by simply reducing the heat at every cycle. The fuel itself is fairly efficient burning, though. But a variable heat relecter would allow colder weather use. Anyway, it is a work in progress. But, there is more progress that could be made.