Hess, for sure. The jungle. You will meet an entire floor of people, rather than just a roommate and your suitemates like in Reece or Carrick. We turned our study into a boxing ring, poker room, super bowl party, smoking den, beer pong room.... not to mention the multiple slip and slides. This was 04, and they've completely redone the rooms since then so that they have modern furniture and lofts.
Its extremely close to the library, has restaurants in the lobby, and is just a stones throw from presidential courtyard and the gym.
Right out the back door is the humanities building, where all your english, foreign language, and liberal arts type classes will be.