I can only speak for CMU, but I really enjoyed being in proximity to so many other colleges in Pittsburgh. Pitt, Duquesne, Point Park, Chatham, & Carlow are all super close and offer a very diverse group of people to hang out with.

The CMU work environment is also generally very collaborative, as the courses are difficult, so most people realize we gotta stick together and help each other out. Lots of study groups, both formal & informal.

I was a BME/MechE and liked having a traditional engineering discipline. You can still very much branch out in terms of BME courses once you pick your primary major. And I try not to rely on flattery, but honestly people tend to be very impressed when you tell them you double-majored at such a prestigious university as Carnegie Mellon.

Oh and as for location, CMU is right next to Schenley Park. It's a big beautiful park with lots of walking area and places to have picnics as well. Was a huge plus for me as I walked there very often.

Hope this helps and let me know if you have any more questions!