<p>Yes these are graduate ranking, but the difference is so extreme 18 vs.130 that it is clearly going to be reflected in the quality of facilities, the number of faculty available, and the opportunities to do research. Size does matter and it does not necessarily mean poorer teaching. Indeed some of the graduate students that will lead the introductory courses will be among the best and brightest in their areas of competence in the country, and may be the world, and doing cutting edge research. Also remember, once a student gets into his or her major that department becomes the University for them, and it is a much, much smaller world. A world where you know your classmates and your professors.</p>