Not sure if this is on or off topic at this point but USNWR rankings also include the most common applicant overlap schools. The four listed with HC are BC, Fordham, PC and UMass Amherst. In no particular order. None of this is surprising. Looking at the overlap schools for each one of those four, only PC also lists HC. So that means a high percentage of HC applicant also apply to PC AND a high percentage of PC applicants also apply to HC.
It is interesting (although not surprising) that no LAC is among the four largest HC cross applicant schools. Although 3 Catholic schools are (and each does offer liberal arts within a larger setting).
(FWIW PC’s biggest cross applicants are BC, Fordham, HC and Fairfield; Fordham’s biggest cross applicants are SUNY Binghamton, BC, BU, and NYU; BC’s biggest cross applicants are Georgetown, Northeastern, UVA, and Notre Dame.).