Fighter- F16 Fighting Falcon

Why- Its looks. Runs on one engine. While this may not give the speed of an F-18, this lowers cost and makes a more efficient aircraft.
Helicopter- AH-1 Super Cobra

Why- The Marines use it. 'Nuff said.
Bomber- B1B Lancer

Why- Its just massive! Its got a large payload and speed the B-52 could only dream of. Variable wings too.
Been in em all!