Peanut oil for deep frying and stir frying, butter for eggs. Can't stand "canola" rapeseed oil due to the slightly fishy smell (must be that omega whatever compounds). Don't mind using olive oil but its pretty expensive. I can even taste the soybean oil in some mayo. Tried coconut but for some reason didn't like it. I guess the taste doesn't go with the other food I'm cooking it with. I don't think there are perfectly neutral oils and it's how the oil tastes in conjunction with the ingredients and what you are used to tasting that determines your preferences for cooking oil.