Say what? I've never heard Duke mentioned as an Ivy-league school....
Its not Ivy in the literal sense, thats a closed circle of eight but in terms of standing its got to be right up there. I found out that West Point and the Naval Academy were once considered part of the Ivy League, so if you added them you could call Ike, Carter and McCain Ivy Leaguers as well.
DOOK University (aka University of New Jersey at Durham) is often called "The Harvard of the South," just like Georgia Tech is called "The MIT of the South." FWIW, YMMV