Neither, at least with any regularity of frequency. Virtually all tastes are learned, it is not so difficult to unlearn tastes as well. Natural plant oils, nearly all of them, contain the kinds of fats and oils we need for health. Try the Spanish way with Olive oil: rub fresh, raw garlic onto bread, then squash an overripe tomato (or a lightly grilled one) onto that, finishing with a drizzle of oil and some black pepper. Great flavour, no butter, no trans fats.
Some natural, particularly cold-pressed oils have lovely flavours; a particular favorite at the mo is Sunflower, it is nutty and sweet. Drizzle a little and spread it with a knife… A combination of oils and very small amounts of organic butter, especially Goat Butter (fat is slightly differently put together than in Cow butter) is really enjoyable and much healthier than anything processed, saturated or hydrogenised. More sustainable too.