While comparing yield rates is interesting in its own right, it reflects a concern with “objective criteria” that is methodologically inappropriate for assessing prestigiosity.
Prestigiosity is a free-floating currency, not anchored to any purported gold standard (yield rates, endowment per student, test scores, cross-admit preferences, etc.), but arising instead from the fevered imaginations of ambitious, CC-haunting high-school students and from the pi$$ing contests of young analysts at investment banks and private equity firms.
To hunt the snark of “objectivity” in the forest of prestigiosity is ever to be disappointed.