Last April, I was deciding between Swarthmore and Pomona, so I can give you my impression of the humanities and intellectualism at the two schools. I didn't look at Brown or Chicago, so I can't comment on them. Swarthmore is an intensely academic, intellectual place. That is what I loved about it. The school overall emphasizes humanities, although there are a sizable number of kids doing sciences. Most swatties end up going into academia, that is really what the place is known for. Pomona seems a bit more balanced, the kids are very smart and dedicated to their studies, and definitely are ambitious, but seem a bit more balanced. Pomona is a bit more balanced, so while the humanities programs are very very good, they also have strong science programs and pre-professional programs. As a point of comparison, when I overnighted at Swarthmore I ended up sitting on a guy's bed talking about world politics, planning majors, the Spanish department etc. until really late. When I overnighted at Pomona, I found myself in a dorm party. One of the guys I talked to had spent a lot of time visiting friends at Swat, and suggested that kids at Pom let their hair down, while kids at Swat have to force it down. When I sat in on classes, they seemed to be matched in terms of rigor and intellectualism. One huge difference is location. Pomona is surrounded by four other fantastic lib arts colleges (Scripps-women's LAS, Pitzer-social justice/eco bent, CMC-very pre-professional, more conservative, and Harvey Mudd-the MIT of the west) and so at Pomona you will take classes at the other colleges, go to their parties, make friends with their students etc. and it is very, very easy to do this. Claremont (the town around Pomona) is small, but has a significant number of really good restaurants, fro-yo places, shops etc. Swarthmore is in a consortium with Bryn Mawr, Haverford and Penn, but you have to drive/take public transport/school shuttle to get there, so scheduling cross-enrollment can be a bit more challenging. The town of Swarthmore is much smaller than Claremont, it is a dry town (although Swarthmore College is NOT dry) and there really isn't much to do, so most people go into Media (a neighboring town) or Philly. Swarthmore students are more intellectual all the time, while Pomona students are intellectual in the classroom and outside of it, but let go of that outside of the classroom. Feel free to PM me if you want to talk about the schools more