The Flavor of Life

Taste is not always the word that's subsequent to eating. Humans don't just taste the food they eat but also the world around them: The Flavor of Life. It's called "likes" and "dislikes", which doesn't mean the food you want to eat versus the food you despise. The flavor of life taps into the wonders of music, art, actions, places, people, adventures, or any person, place, or thing. And every living being is the epitome of the flavor of life; any living creature with a preference represents the flavor that life presents.
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People have a preference:

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Sister #1 has displayed this clearly with her distaste for poetry, her distaste for organization, and her distaste for anything that makes my life easier.
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Sister #2 has presented this fact with her blatant, good taste in fashion, her good taste in music, and her love in what we could metaphorically call, the flavor of anything out of the ordinary.
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Best Friend show her good taste in scented shampoo, her love for anything art-related, and her good taste in people.
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Difference between these people?

..................Yes..................

Obviously. They share different lives; enjoy what they enjoy; be what they want to be. But they still live under the same concept, that all people desire and dislike. And in that and only that, they are similar.