For many routine oil and fat uses olive oil is my first choice.
It stays fresh in quantity. We can buy three quarts at once which lasts a from one to three months, and therefore is “turned over” to stay fresh often enough at room temperature in the dark.
It is versatile, being good cold in dressings, and warm for cooking. It also mixes well with fats, such as butter, for a change in flavor.
It is reputed to be healthy for us with its large amounts of monounsaturated fat.
We always use up the olive oil, so for us it is a good buy, and very efficient to use in our kitchen!