This is a silly question. Lol.
There is a reason "butterbody" isn't a thing. No one cares about a pretty girl with a disgusting body, but an ugly face and physique of a goddess is very desirable. A beautiful, child-bearing physique is still desirable from a reproductive perspective.
Also, I think a lot of guys see a butterface and think it's easy pickings... "she doesn't realize how nice of an ass she's got!" or something. Trust me she does.
Anyway, here's a butterface to make it worth your while.