Which TCSP base should we rebuild?

Map 3 (Middle of the ocean, glass panes, far from spawn)

Map 4 (Looked like a turtle, had four towers around it, combo lock for the first level)

Map 5 (Close to baddies, circular w/ a diamond sculpture in the center, had an underground maze/cave)

Map 7? (Super far away in the jungle, http://imgur.com/a/HrgQl)