Gas stove users in general will state emphatically that gas ovens cook better than electric. However, electric users report superior results over gas ovens or no negligible differences. The appliances however have distinct differences that depending on the user might sway a decision to purchase one over the other.
Gas vs Electric Cooking
Because of its flame, some cooking techniques like charring peppers or roasting marshmallows are better accomplished with a gas stove. However, oven cooking result differences are negligible. Electric ovens allow for more precise heating control because of its electronic controls calibration. Gas is recognised for maintaining a consistent heat level once the desired temperature is reached while electricity powers on and off.
Older gas stoves require you to use a match to light the pilot light, which could prove to be hazardous. Modern gas cooking stoves have electronic ignitions so that they are much easier to start. Electric stoves have no pilot and are easy to start with an electric control panel.
When the power goes out, so too the electric oven. You can still use your gas oven if the power goes out as long as you have enough gas or propane to last. Gas ovens with electric igitions will also not be usable in a power outage.
Cost to Operate
In general, gas is cheaper than electric for cooking. The average typical savings for gas over electric cooking is £9 per year, according to a comparison at MichaelBluejay.com. This saving factors in both the burners and the oven.
When just the ovens are compared, the annual cost difference between gas and electric is less than 60p. It's the electric burners that cost more to use and makes a gas stove cheaper to use overall. However depending on where you live, electricity could be cheaper than gas from your local utility company.
Gas has other drawbacks compared with electric. Because its combustible, gas is dangerous and the danger of an explosion is rare but real. Also, breathing the byproducts of gas combustion is unhealthy. Electricity doesn't have that drawback.
Gas ovens generate carbon monoxide and nitrogen dioxide. These poisonous gases are emitted in amounts considered safe but they are emitted nevertheless in the home environment. Precautions need to be taken to ensure proper ventilation of the kitchen and the home when gas ovens and stoves are used.
Look for direct vent or sealed combustion gas appliances that don't emit gas byproducts. Though expensive, these are considered to be the safest -- they provide the appliance with its own air supply coming into and leaving the unit, so none of the products of combustion can enter the home.