If I am expecting cold weather consistently then I run liquid fuel (owned a omni-lite ti but run the Soto liquid fuel stove now personally) but the vast majority of the time i use canister....not so concerned about the weight difference but generally for most of my trips I can do a week on a 230 gram isobutane canister with my wife which is 12 oz which is less weight than what I use for a liquid fuel stove for the amount of fuel I'd need for that long of trip as well. But more importantly than weight difference how fast it is to setup and get a canister stove running. No pumping/no priming on a canister like you do for a liquid fuel. Its mostly personal preference. For me though I have and use liquid fuel stove, but for me is more of a necessary evil when iso just doesn't like to burn in the cold, than something I gravitate to.