US News and World reports 2007: Best colleges par difficulté d'admission
| 1. | Harvard College | ||
| 2. | Princeton University | ||
| 3. | Massachusetts Institute of Technology | ||
| 4. | Yale University | ||
| 5. | Stanford University | ||
| 6. | Brown University | ||
| 7. | Columbia University--Columbia College | ||
| 8. | University of Pennsylvania | ||
| 9. | Washington University in St. Louis | ||
| 10. | California Institute of Technology | ||
| 11. | Pomona College | ||
| 12. | Duke University | ||
| 13. | Amherst College | ||
| 14. | Williams College | ||
| 15. | Dartmouth College | ||
| 16. | Middlebury College | ||
| 17. | The Cooper Union for the Advancement of Science and Art | ||
| 18. | Georgetown University | ||
| 19. | Haverford College | ||
| 20. | Swarthmore College | ||
