Easy chioce this one for me!
One of my favorites of all time, and proven in combat. 21 kills during the falklands conflict, without a single loss air to air.
Thats some record, and a credit to the aircraft and its pilots during those tense and dark days of 1982, and proved the doubters, many in the Navy, complety wrong.
My thoughts on its subsequent retirement and its replacement, ill keep to myself

I did download a task force fleet, and try and get some on deck shots and so on, but the quality wasnt that good.
The Harrier itself, from UKMIL