>>8903938Speaking from an objectively natural selection point of veiw it could be a number of traits preffered by mate and differ depending on the species, for example:
Whichever has the brightest Colors
Can hold its own in a fight,
Defend its mate and offspring (a good Protector)
A good hunter (if your a predator)
everything else seem subjective or dependent on the species.
We don't see to much of it in the movies aside from TLW and BaBR
