Bateman's Principle (more variation for men's looks)Edit
Bateman's principle states there's more variation among men, than women. So There's inevitably going to be more/uneven looks levels on the boy side compared to the girl side. Such as almost every girl being a becky, and there no such thing as Stacypreet.
A quick google search for Stacypreet confirms the prior statement.
More variation of males at the topEdit
Bateman's principle is also why there are more variations of Chads at the top of the decile, than variations of normies and incels.
And why there's more variation of becky's in the middle. Becky's range from 3-7.