Add applied math to that list above. Some profs at another college told me it was one of the best in the country. the grad school is rated top 5 in US news and all the profs teach and research with undergrads.
I think maybe students tend to assume that something ‘known’ for Humanities aren’t as good at other things but universities the caliber of Brown are good all around. If they had a deficient department they have the funds and the institutional will to improve it. But those who know recognize Brown for these things. I actually do not know what Duke is known for, for undergrad, I just assumed it was an all rounder.