Barnard vs. Northwestern vs. JHU ED

Hey all, thank you again for your inputs. Just to clarify, I’m really looking to get the best out of Barnard (Columbia College being there is definitely a perk, but def not the reason why I want to go to Barnard…I fully don’t expect to access Columbia’s career center/alumni events/etc.). Can anyone speak on grade deflation/inflation at either schools. I happen to be very blessed and attend a T10 American Prep school, and grade deflation is super severe at my school, meaning I have very subpar grades. I’m looking for a school that essentially will help me earn a higher GPA. Do you think it would be easier to succeed academically more at Barnard or Northwestern?