Unweighted vs Weighted GPA?

Which matters more? Unweighted or weighted? I know at UCs, they mostly consider your weighted, but what about private universities all over America?

Unweighted GPA is considered more, but so is the rigor of your classes.

Weighted GPA from your high school is usually meaningless outside of your high school.

UCs and CSUs consider weighted GPA, but by their own calculation, not what your high school calculates. So if you want to specify your GPA in the context of UC and CSU admissions, use the version recalculated by their method.

In general, if you post your GPA here in the context of college admissions, it is best to post the unweighted GPA with a description of what courses you took.