It is time in invoke Hikermor's Law - "The more varied outdoors circumstances you experience, the more stoves you will acquire." Eventually you will possess the entire spectrum, ranging from Esbit and alcohol (for balmy summer afternoons) to canisters to roaring liquid fueled apparatii (actually blast furnaces in disguise) - great for Antarctic blizzards and melting glaciers. Each type has its optimum zone where it works quite well and dependably.

Most of the time I use my faithful canister Pocket Rocket, but I don't do extreme conditions anymore. I usually throw in some Esbit cubes or alcohol, even on simple warm day hikes. If I had just one stove, it would be a liquid fueled model, probably something akin to the classic Svea or Primus, rigs which have kept me fed, warm, and happy in fairly tough circumstances. They are a bit heavier than necessary in mild conditions, but they are convenient, with minor environmental impact.