The big five is supposed to be a list of dynamic, big tough, brutish, forceful animals, so here is my list:
1. The Concorde - Started doing business travel long after this bird went extinct.
2. The Double Otter - A versatile plane, much smaller than the rest but can be equipped with skis or floaters to land in snow or on water.
3. Sikorsky 76 - Or any other helicopter. The lift off from a cramped space is a fascinating experience along with the surprisingly elegant landing when there is enough space.
4. Anatov An-24 or any other plane built by the USSR. Nothing better than a plane that they give you earphones to wear - not for music but for noise.
5. 747 - The Queen of the Skies on the endangered species list.