Cave nodes are a little bit more compact and makes it easier to defend as a choke point for cave team. The one that's closer to the true-center node is incredibly frustrating, too since it's close enough to allow casters (cough SMN) to attack from uphill.

North team has the short end of the stick with having the least amount of nodes closest to them, and their spawn point is practically bottle necked toward the beach, as well as their nodes having multiple entry ways to get them sandwiched.