WHY DO WE PICK FAVOURITES?

At the root of favouritism is the fact we all have preferences for certain colours, tastes, faces, places and much more. These preferences are partly driven by our evolutionary past.

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For instance, there's evidence we favour brighter hues associated with positive things like sky and water, while disliking darker hues that have connotations of dirt or disease. We also generally prefer geographic settings that provide a good balance of shelter, resources and outlook (presumably because our ancestors were more likely to survive in such places). And we tend to perceive symmetrical faces as more beautiful, perhaps because they're a sign of healthy genes.