For 2-3 day trips I use a homemade Pepsi-can alcohol stove. It weighs about 0.2 oz (2 oz including pot stand and windscreen) and will boil a pint of water in under 5 minutes using 0.7 fl. oz. of denatured ethanol (unless the wind is blowing). For longer trips I use a Snow Peak Giga canister stove with a canister selection appropriate to the length of the trip. For cold weather, I use an old Svea 123. Yes, there are lighter white gas stoves but I am sentimental about the Svea and besides, I am too cheap to buy a lighter stove.

I have been using these setups for over ten years now and am happy with the results. BTW, like Lori, I don't like Esbit, partly because of cost and more so because of the smell.