Here are the rankings per US News and World Report. UK is tied for 10th in the SEC with LSU, tied for #129 nationally. Only Ole Miss, Mississippi State, and Arkansas rank lower than UK. UofL is tied for #161 overall. So UK is not that much, if any, better than UofL.
Those rankings mean virtually nothing past your first job out of college. Some of the smartest people I've worked with and/or known went to Ole Miss, Mississippi State, and UofL. I've worked with people from places like Michigan, Florida, Notre Dame, etc. that were no more intelligent than anyone else. A lot of these rankings are based on how selective/elitist that particular college chooses to be. As a result they tend to produce elitist graduates who don't always transition well to the real world.
SEC Rankings (national rank)
1-Vanderbilt (T16)
2-Florida (T48)
3-Georgia (T62)
4-Texas A&M (T68)
5-Alabama (T88)
6-Mizzou (T99)
7-Auburn (T103)
8-Tennessee (T106)
9-South Carolina (T113)
10-UK (T129)
10-LSU (T129)
12-Arkansas (T135)
13-Ole Miss (T149)
14-Mississippi State (T156)
http://colleges.usnews.rankingsandreviews.com/best-colleges/rankings/national-universities/data