Pitt's campus is far more aesthetic and less crazy than Rutgers' (she wouldn't have to put up with a ridiculous busing system and a lack of administrative action in that regard). Pitt is also academically stronger than Rutgers overall, so being in the HCs at both should pull her decision closer to going OOS.
If you're looking for a coastal school with great science programs, look no further than UNC Wilmington. One of the top marine bio schools in the nation, strong in the sciences all around as well. It's not a private school, but it is almost four times bigger than your current school. Incredibly laid-back and chill vibe on campus, with some of the friendliest people around. Great D1 sports also.
Also look into College of Charleston, very similar to UNCW.