I don't know if there is a definitive group, but seems to be the common reference for elite schools that are not Ivy League.

Appreciate the questions you raise. Those sound familiar. My #1 concern is spiritual health, and cost being a close second. So, I think we will encourage our daughter to attend BYU for her undergrad studies. But, I was curious to hear of anyone's experiences having a child attend an Ivy League school for undergrad.