Propane, I’d guess. With propane, you are paying someone to truck propane to you and pump it into your tank. You are also paying all the costs of owning and maintaining the tank.
If you live in a place with reliable electricity, I don’t think propane really makes sense any more. You can get heat and hot water from heat pumps, and induction stoves work well and are vastly more efficient than gas.
Induction is alright, and some people prefer it. Vastly superior to radiant electric.
If you really like cooking on gas (I happen to) the expense of running a propane range is insignificant compared to the amount of propane you'd burn to heat water or a home.
Fun factoid: Propane leaks are far more dangerous than methane leaks. Methane is less dense than air, so it tends to mix more fully. But propane is more dense than air, so it tends to pool near the floor. And the lower flammability limit for propane is lower (2.1% vs 5.0%). So you reach the lower flammability limit faster. Plus the fact that pilot lights are often near the floor.
Propane is easily transported and stored as a moderately pressurized liquid at ambient temperatures. Propane has a big volumetric advantage over natural gas. Natural gas is mainly methane, liquifies at -160°C, and requires active refrigeration. If your use point is within natural gas piping range, gas is usually the better choice. Propane is the choice for locations not served by piped natural gas.
Why would you go with propane? Natural gas is ubiquitous and everywhere (at least in the US). Maybe it's less so in the south? In the north it's mandatory for not dying in the winter unless you're so rural that you need to chop wood to stay warm.
No, natural gas is not ubiquitous. Maybe within certain urban and suburban areas, but once you get a little rural you are out of luck.
Then again, a lot of people don’t realize cable internet isn’t a given, even within 15 minutes of the capital city of a state in the contiguous United States. They also don’t have natural gas available. :-)
In suburban NY you don't have ubiquitous natural gas. Some, but not all, new developments are natural gas, but many existing ones are heating oil. Propane is also a possibility, but much more expensive so is not used as often as oil except for cooking.
Water usage basically scales with household size. GP probably isn't a single dude living in a studio apartment taking navy showers and planning his meal prep to minimize dish washing. Combine that with an electric water heater (almost always more expensive to run than natural gas) and a nearly triple digit electricity bill isn't surprising.
If you live in a place with reliable electricity, I don’t think propane really makes sense any more. You can get heat and hot water from heat pumps, and induction stoves work well and are vastly more efficient than gas.