<p>oh, dammit, i forgot some stuff! ok...</p>
<p>Prestige: They are both equally prestigious, and don't let anyone tell you otherwise. Harvard probably has more international recognition, though, but within the US, they're on the same level.</p>
<p>Weather: It's COLD in the winter in both places. I HATE the cold. I think Cambridge gets far colder than Princeton, but let's face it... once you reach a certain point, does it really matter whether it's 5 degrees or 15 degrees? Either way you're going to be buried in a cocoon of blankets.</p>
<p>Class size: probably the same. At every university, popular intro courses are huge and then get smaller as you get older. The student to faculty ratio is about the same at both, i think. Harvard gets a lot of criticism for its "grad school focus," but i think a lot of that is a myth... Professors teach classes, and sometimes grad students will lead small optional sections to go over the lecture, which is actually a good system in my opinion. Princeton doesn't really have a grad school, so you are guaranteed to have an undergrad focus.</p>
<p>Flexibility in Departments: At Harvard, you can double major or create your own major. At Princeton, you can't double major because senior year you have to write a senior thesis, and it is physically impossible to do two of those at the same time. However, you can definitely minor in something other than your major. I'm not sure if you can create your own major at Princeton... someone else will have to answer that.</p>
<p>Financial Aid: You won't find any better financial aid anywhere else in the world. Seriously. I think Princeton comes out on top on this one, because all of their aid is grants... they have eliminated all loans. They are very generous, too, and if you have below a certain income you don't have to pay at all. Harvard also has great aid, and if you make less than $40,000, it's free, and in between $40,000 and $60,000 is significantly reduced. Both are need blind for US citizens, but i'm not sure if that holds for international applicants...</p>
<p>Safety: Well, obviously since Princeton is in a suburb (and a pretty wealthy suburb at that), it's probably a little safer than Harvard, which is more urban. However, both universities have put a lot of effort into making escorts available at night and having a big campus police force.</p>