That's great to hear about how Nova and Sju players got along, even at the FF. Rollie was their version of Lou, a madman on the sidelines, but never rising to enemy. Thompson I believe, though completely a gentleman off the court, liked to create an us vs them atmosphere, maybe even an us against the world. Lots of good reasons though. Boeheim was such a whiner, he became an enemy too. Off the court, he was always very gracious about St. Johns, even saying that Mullin was the best Big East player in its history.
Another reason Villanova had synergies with St Johns is that many of their students grew up around nyc rooting for St Johns. Many had parents who were SJU alums. Of course Jay Wright was such a gracious, likeable asset, it was impossible to hate his teams.