I too had a better time at Princeton Preview than BDD. However, when I thought about why, it had everything to do with the better weather, the fact that my host at Princeton was an upperclassman and that I was exploring the place with a classmate. My host at Yale basically greeted the pre-frosh on Monday and chatted for about an hour but then had to study for "finals". Still, I prefer the edgier, urban feel of New Haven to the suburban, gated-community ambiance of Princeton. Trying to compare the academics of both places is somewhat silly, especially if you end up changing majors; both have tremendous resources and are focused on undergraduate education. I will be in New Haven in the fall.