I disagree. There are hundreds of MT offerings throughout the US. While it maybe impossible to measure one "top" school against another "top" school talent wise, it is pretty easy to pick out lesser schools. Go to a senior showcase or even a freshman review. Go to a main stage production. Look at the resumes of the faculty. Does the school have a reputation for turning out working professional on a consistent basis?
The better schools "generally" attract and admit the more talented students. Usually the prospective students have done their research to draw their own conclusions before auditioning. To be clear, when I refer to "talent" I am referring the the student body as a whole. Not an individual who comes out of nowhere to be a star.