My professors always know my name, and are incredibly approachable. Many professors are really accessible by email or for meetings - and all professors have a few office hours a week, and you can really use them. It's an incredible opportunity to get to know the professors better, to have concerns about the class or a paper addressed, and just to feel like you're getting the most out of the course.
My favorite class was Christian Ethics in Modern Society (Religion) with Professor Kahn. Least favorite was Intro to Native American Studies (American Culture) with Professors McGlennen and Wallace - nice women, the class just didn't work for some reason.
Most unique class - Experiencing Art (intro to Psychology) with Professor Palmer, and Movement Analysis (Dance) with Kathy Wildberger
We do have intellectual discussions outside of class - it feels like such a cliche, but I really have stayed up late on school nights (or weekends) just talking about religion, or sexuality, or politics, or philosophy. It's so fun, in a completely un-pretentious way.
I'm a Geography-Anthropology major - one of Vassar's many interdepartmental programs. We have a crapload of interdepartmental and multidisciplinary majors, which is a fantastic choice for those of us who can't decide on just one department to study. I feel at home in the Geography and Anthropology departments, both with a great student cohort and vibrant array of professors. I'm also probably doing a correlate sequence (minor) in Religion, just 'acuse it's exciting stuff to think about.
Vassar is anti-pre-professional to a fault. Everything is geared towards learning for its own sake, learning how to think, learning what makes you tick - nothing that could actually, you know, get you a job one day. We're all destined for grad school if we ever want to make use of our degrees, but I can't say I mind when it's so much fun in the meantime. Anyway, I didn't know what I wanted to do professionally when I came here (I still don't, actually) so it's not like I could make much use of a pre-professional opportunity at the moment, anyway.
I like having so few academic requirements - so much freedom to explore different departments/programs. My only complaint is NRO restrictions - in theory, we can take four courses under the Non-Recorded Option (you decide on a grade standard - if you meet that grade, the grade gets recorded on your transcript; if you get below the grade, it reverts to pass/fail) as a way to feel free to experiment in new areas - but there are so many classes, or even entire departments, that you can't NRO that it's really quite limited.