From what I hear the Lockheed ship needs access to as many drydock facilities as possible - it’s already going down for major repairs.
I know a guy who has workrd on both projects (Lockheed and GD/Austal) - he says the GD/Austal ship is by far the most capable.
And I actually call on Austal in Mobile and have supplied equipment on both vessels and most people like the Lockheed design as easier to build and maintain. The blame for cost overruns on both designs falls on the Navy for demanding it do more than originally designed for.