quality of life & location
miami: AMAZING weather, easy going students
american: bad weather, dont know anything about the students
miami: owns the legal market in south florida.
american: little brother to big name schools in a more competitive legal market.
I heard about the job markets being different as well. But those that suggest American as a possibility have said that although Miami is pretty much the only game in town for Southern FL, the Washington D.C. area has a greater need for lawyers. There may be several law schools that graduate students who work in the area (in addition a large number of graduates from national law schools that come to D.C. to work), but that is because D.C. has the highest need for lawyers than any other city in the U.S.