ok here's the deal, i originally started out with a msr simmerlite and a 13oz fuel bottle several years ago, then recently switched to a bios 2 alcohol stove. i really like the alcohol stove when i'm only heating 2cups or less of water. after that i'm consuming way too much fuel to make the weight savings benificial to me for the lack of efficency. i'm using a methyl-alcohol fuel, the yellowgas line anti freeze, (yes i know it has a higher vapor pressure and slightly less energy efficency but it's the easiest to find and runs the same on every batch). it's coming to a rolling boil around 6 to 8 minutes at elevation for 2 cups using about 2oz and 8 to 10 minutes with 4 cups of water using approx 2.5oz of fuel. of course the usage is very subjective, because you can only fill it once per light, therefore when you put a smidgin too little of fuel, it doesn't come to a boil, then you have to refill the stove and start reheating… it's a hassle that i don't want to live with when i'm taking my girlfriend backpacking and i need to boil 4cups or more of water.
so i'm looking into a canister stove. i was wondering on reccomendations, problems and any other info you can give to help me make an informed decision. i picked up the "stove sheet" at rei, and have deduced down to the MSR pocket rocket, snow peak giga power with auto, and snow peak litemax. who's used any of these and who would reccomend them. i'm looking for the best balance of fuel efficency to weight. it'll only be for 3 season use for temp ranges from 32F to 90F, rarely towards the lower end or below. thanks

