Those are good grades! Based on grades alone, without knowing the rest of your application or career goals, go for any top school that you can afford and will be happy attending. But remember fit is more important than some arbitrary ranking. Anytime we see both Brown and Columbia on a list we wonder if any research has been done on these schools at all since they are very different (location, curriculum, etc).
I’ll also stress the need to have safeties and likely/matches in your application list as any T15 has far more applicants than spaces available.