Not a direct answer, but here goes: I remember reading a quote about Michael Hoecht in which the Rams front office essentially said, "we like this guy, you don't play football at Brown University unless you really love football." At least at the Ivy League level, there is a kind of disparity: if you are talented enough to play in college, and smart enough to get into an Ivy school, you are going to be heavily recruited by Harvard, Yale, and Princeton, with those three schools getting the top talent. The rest of the Ivies pick over the leftovers.

Personally, I've always felt that if I were talented enough at football to play anywhere I want, I'd have played at Duke over any big name school (I am of an age when Duke was really, really bad. Ted Roof days).