^^definitely save money during undergrad.
But just bcos BC has a strong philosophy department doesn’t mean that their Chem or Bio is terrible. In fact, BC Chem is ranked significantly higher than NEU Chem. Ditto Physics. In Bio, they are comparable.
On a % basis, BC has a slightly higher number of biological science grads (10%) than NEU (9%). Where NEU dominates is Engineering, particularly MechE, but not sure how valuable that is to a premed (unless the OP wants to major in Engineering). NEU also has a large health professions program (RN, PT, Admin, Pharmacy…), but most of those classes do not qualify for med school apps.
Premed is premed. It’s primarily two years worth of lower division science classes. Nearly every 4-year college in the land offers the sequence.
Med schools won’t value your degree more from any of the 3 schools as they are considered academic peers.
Be happy that you got a good deal but its disingenuous to claim that that Northeastern is “known for STEM” and BC is not. One can be good at a lot of things. Most top colleges are.