Falklands war air cover
Just supposing the Royal Navy had fought the Falklands war a few years earlier or Ark Royal had remained in service a bit longer, so they would have used one conventional carrier with Phantoms and Buccaneers instead of 2 Harrier carriers.
Would they have been better off or worse off?
On the one hand the aircraft would have been in some ways more capable, and there would have been AEW aircraft available.
On the other RAF aircraft could not have provided reinforcements so easily and Ark Royal was well past it's best in terms of servicability.