I can't name a single great president we had that came out of the Ivy Leagues. And I can name serveral duds without breaking a sweat, including the poser there now.
Check out this list
http://en.wikipedia.org/wiki/List_of_United_States_Presidents_by_college_education
It’s pretty much failsafe that Ivy League=bad president. Even in the very early years, the worst presidents were ivy leaguers (Adams, Madison).