When it comes down to it, housing at Northwestern rides on one choice: North or South Campus? North Campus is known for two things: partying and engineering. Weird, right? The fraternity houses are all up north, as is Tech. So you are bound to find hard-partying frat guys and engineers who prefer to study. North Campus is also home to the biggest party dorm on campus: Bobb-McCullough Hall (known to students as "Bobb"). According to a recent study, Bobb is one of the biggest party dorms in America. South Campus students know how to kick back and have some fun, too, though. Allison Hall and Willard Residential College are known to have their fair share of wild nights. Overall, though, South Campus is a bit quieter, and is home to many theater, journalism, and humanities students. Since most students tend to eat and hang out on the side of campus they live on, there is bound to be a large chunk of the student body that rarely comes into contact with each other. However, many students make friends on the other side of Foster just fine.
Another important distinction to make is the difference between a residence hall and a residential college. Residential colleges are smaller themed dorms that focus on specific interests; students tend to develop a real sense of community, and events are planned for residents throughout the year. "Res colleges" are mainly set up suite style, where six or so rooms share a lounge and a bathroom. Residence halls are much bigger and have communal lounges and a bathroom per floor. Ultimately, the decision of where you want to live comes down to your interests and what you are looking for from a living space—community, partying, or a short walk to class.