Let's make the naval war more interesting
Suppose that Argentina had decided to keep Moreno and Rivadavia--a pair of American built dreadnoughts--instead of scrapping them in the 1950's. In addition, Britain retained HMS Vanguard. Both fleets have upgraded their battleships with modern missiles to augment their big guns.
The Argentine carrier, augemnted by land based aircraft, manage to sink or cripple Hermes and Invincible, at the cost of severe losses themselves. For the moment, there is no air cover for either side--at least none that can't be dealt with by SAMs from the ships.
The Argintine battlefleet steams for the transports, and the Royal Navy intercepts.
The Argentines get lucky, and only General Belgrano is torpedoed before the British subs are sunk and driven off.
After an exchange of missile fire, most of the escorts are damaged, sunk, or just out of missiles. The battleships on both sides still have their big guns, and minimal damage from missile fire. (An Exocet strike on a battleship's belt would scratch the paint, but not much more)
Now, decades after the second world war, the last battleship gunnery encounter starts. The Royal Navy has to win, or the troops in the liners are toast.