To answer the question:
do all guys goes for girls' looks?
the answer is:
not all
Reasons for saying so:
I conclude after observing some of my married classmates.
Some guys like intelligence woman even if they are short, ugly,
a-cup.
Also seen many plump couples clicks.
Also as the guys mature, they go less for the looks and stress more
on characters.
Note: Well, i am only talking about some guys only. 
