Here's my 6.345343 cents worth:
All the civs should have a Capital Ship factory. They would make Cap ships that would take forever to build and take a LOT of resources.
The cap ships could engage multiple units, both air and ground-based, they could carry an excess of 50 units in them, including water and air units. They would move slowly. Think air cruiser, but slower. They would have to have shields and powerful weapons to keep them safe though.
Ideas for Civ Cap ships:
Empire: Star Destroyer (Duh). These would be slightly faster and stronger than any other cap ship.
Wookies: No clue. Any ideas for this one?
Republic: An Acclamator-Class Republic assault ship. These would have the largest cargo bay of any Cap ship, in excess of 80-100 units per ship.
Naboo: They'd probably make a new ship for this.
Rebels: Any of the many Mon Calamari Ships would do fine for the Rebels.
CIS: A Federation Core ship or perhaps a new ship. If they make a core ship, it would be smaller and weaker but could hold around 70 units.
Federation: A Droid Control ship or whatever those donut-like ships are called.
Gungans: It would be interesting to see what this would look like. Ideas, anyone?
All cap ships would be as big as a single unit could be, and when they get shot down they would either crash and destroy whatever is beneath them, or explode in a large explosion.
I know, it probably won't be done, but it would sure be nice to have big, fear-instilling ships of mass destruction rather than the itty bitty star cruisers of GB:CC.
I'm anxious to hear constructive critisicm and comments.
-Darth Meatloaf-