There are schools you'd like to beat, and then there are schools you need to beat. Then, there is a third category all to itself: schools that make everyone else want to beat them.
Kentucky usually falls into that third category. The Wildcats always get the best shot from every opponent they play. Something about the Blue and White brings out the best in everyone else. Maybe it is Kentucky's unmatched tradition, their historical dominance in the SEC, or the eight national titles.
But the feeling goes both ways. There are some teams BBN just wants to see lose.