Very interesting thread. Could the Phantom have been used against Stanley?
What has struck me before is the question of timing. Had Argentina invaded in the autumn of 1982 rather than the spring it could have made a big difference to Operation Corporate.
On their side, they would have had a bigger stock of SuEs and Exocets to use against the Task force and, as the army's conscription programme went from January to December, their squaddies would have had double the amount of training that they did have.
On our side, the last of the Vulcans was planned to be out of service in June 1982, the first Tornado squadron had only just reformed, while as for the carriers, Hermes would have been decommissioned by then and Invincible would have been on its way to Oz, leaving just Illustrious to head south.
So, would the better option have been to wait until the following spring to build up our forces, possibly returning Vulcan and Hermes to service and talking nicely to Australia, gambling that Argentina would not have built up a big force on the Falklands, extended Stanley's runway to operate Mirages etc, or to go with what was available at the time?