Rankings.
When I was younger, I went to a *very* prestigious college. I hated it. It wasn't the place for me (but I was too young and foolish to see that before I chose it). It was, and still is, consistently rated in the top 20 colleges (if not the top 10) in the country.
I went back to a no-name institution. It has rarely ever been ranked. It was a perfect fit for me and I thrived. I took some of the same classes over again and let me tell you, the quality of teaching I got there was FAR better than I got at the "prestigious" institution, and not just because I actually went to class. In many cases the professors were far far better at the no-name institution, and more involved in the students, more caring about the students' well-being and learning.
So why tell you all this? To make the point that rankings don't matter if it's not the right place for you. And to make the point that a ranked institution doesn't necessarily give you a better education. You can go to the "lowest" institution and out-perform anyone from the #1 ranked institution. Just because an institution of higher learning is ranked doesn't mean it's the best.
So let's get off the ranking thing. Rankings don't mean anything in terms of learning. They can, however, make your ego feel better by allowing you to say that you went to such a school (if you're into that sort of self-validation). I don't need it. Perhaps you do.