Personally, I disregard graduate department rankings as counterproductive to the search for an undergraduate college.
However, its confusing to me on what basis you would conclude that a school ranked 47th in its undergraduate U.S. News category (UIUC) is ranked higher than a school ranked 34th in the same category (URochester).
In any case, whichever school you choose, you did very well get into the University of Rochester.
https://www.usnews.com/best-colleges/rankings/national-universities