Big East rivalries

The Big East Conference, founded in 2013, features many ongoing rivalries among its members. Many deal with the basketball teams, the primary focus of the conference.

In addition to the listed out of conference rivalries, Villanova is one of the participants in the heated five-way men's basketball rivalry that has developed out of the Philadelphia Big 5 basketball series. This round-robin series is played every year between Penn, Temple, Saint Joseph's, La Salle, and Villanova. The rivalry between Villanova and Saint Joseph's is one of the most intense of the group and is referred to as the Holy War.

Further, Butler is one of the participants in the annual Crossroads Classic, along with Indiana, Notre Dame, and Purdue. All four schools are located in the state of Indiana and they each have more NCAA tournament wins than the state's other six Division I teams combined.

...
Wikipedia