Battleships are very expensive weapons systems which is why they are no longer deployed. Bang Vrs Buck. Destroyers on the other hand are cheap, but have no where near the Bang of a battleship. Bean counters rule the world. lol. The sixteen inch guns of an Iowa class battleship were designed in the 1930's, a 2010 design would produce a gun capable of 100 mile range, add GPS targeting and rocket assisted fight and you have a naval weapon system far far superior to anything other then an aircraft carrier.
Survivability depends on two things, speed and strenght (armor). An Iowa class battle ship was very fast, 30 plus knots and it had 18 inches of armor plating. It took everything the Japanese could throw at it and took only minor damage in WW2.
All naval surface ships depend on air superiority, if the enemy can control the air above the battlefield no surface ship can survive. However if we can control the airspace then a modern battleship will deliver more killing power then all the destroyers in the world combined. Just ask any nam vet about fire power of the New Jersey.
Hehehehehehe. You’re right of course. Have a great Sunday J. ;-)