i use both. the 1 mantel propane lantern on not so cold days for heat and then at night for light outside the shack or inside the shack for double duty. if i need more heat, then the mr heater little buddy or buddy heater comes out. depends on which shack i set up and how cold it is. i have a coleman heater too if needed.
good to have options is all i can say and not be stuck with one choice.