Looking on the internet deeply has found these results:

slightly better preference is the most popular phrase on the web.

slightly bigger preference 196 results on the web	slightly better preference 1391 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
And as a slightly bigger adult. Which led to a slightly bigger lie... Or we put you in a slightly bigger one. It's only slightly bigger than Germany. It's only slightly bigger than Germany. Life is all about bridge building, and now I have a slightly bigger hammer in my hand. He's slightly bigger than you but not as good. My apartment now is only slightly bigger than my body.	That does make me feel slightly better. Slightly better picture quality on this one, but I don't... Which still went slightly better than tonight. Slightly better memory can actually give significantly better prison conditions. It has been possible to give Europe a slightly better image. And I'm proud of you for getting slightly better at compliments. Slightly better than your mother's cooking. Which is only slightly better than no choices.

slightly bigger preference

196 results on the web

slightly better preference

1391 results on the web

More popular!

And as a slightly bigger adult.
Which led to a slightly bigger lie...
Or we put you in a slightly bigger one.
It's only slightly bigger than Germany.
It's only slightly bigger than Germany.
Life is all about bridge building, and now I have a slightly bigger hammer in my hand.
He's slightly bigger than you but not as good.
My apartment now is only slightly bigger than my body.

That does make me feel slightly better.
Slightly better picture quality on this one, but I don't...
Which still went slightly better than tonight.
Slightly better memory can actually give significantly better prison conditions.
It has been possible to give Europe a slightly better image.
And I'm proud of you for getting slightly better at compliments.
Slightly better than your mother's cooking.
Which is only slightly better than no choices.