I'm currently studying abroad at the University of Edinburgh, and it's altogether a most delightful place. I don't know anything about the philosophy department, but the actual city of Edinburgh is one of the nicest places I've ever been. The people are very friendly, there's loads to do, and for being an urban environment, it seems to be very safe.

I've visited St. Andrews, and it also seemed like a nice place. Strictly commenting on the actual city and not the university, the city seemed like it would grow to be rather boring. I don't know how much you care about that, but it's basically three streets and a golf course. Obviously, the University is very nice, but if I were planning on an actual four-year degree here, I would choose Edinburgh over St. Andrews for the reason of the city in which each is located.

What do the letters after each uni mean?