Crows and Ravens are highly intelligent creatures, engaging in many different social behaviors including calling one another by name, playing tricks on one another, and using tools.
Ravens are mostly found in forests, away from human populations. It is rare to see a raven in a city, they most often can be found flying about in more natural areas such as mountains and forests. Crows, on the other hand, dwell almost entirely in cities.
I would love to get to know a couple of ravens, however, I am a city-dweller, so I see mostly crows on a daily basis.