Wow... that is almost like trying to make me decide between a redhead, a blond, and a brunette.... (Ok.. so I am partial to redheads, but hey.. I can appreciate beauty in all forms!! hehe)
Let me break it down by category... and reasons...
Props
Corsair II is my favorite of all prop planes. The wing shape and how majestic it looks doing a barrell roll or pulling through a split S... just something about that plane that screams grace and beauty.
Sleek fast moving jets...
Has to be the F-18 Hornet. And it edges out the F-16 by just a hair. I think I really fell in love with the F-18 when I was at the DOD airshow at Andrews AFB about 8 years ago. Seeing that plane coming in low, telling my wife to keep the car doors closed, and then having it go purely veritcal into a climb over the parking lot as cars were shaking an alarms were going off... Now that had to be a Marine pilot!
Slower moving jets
Hands down, the A-10. I was just in a golf tournament and got to see two A-10's playing in the sky. They were about 1500 feet or so off the deck doing lazy circles chasing after each other. Just standing there and hearing the power in those engines just takes your breath away. Plus seeing how some of them have returned from combat and able to not only fly back and land safely...
And of course, the plane that is so ugly that it is beautiful...
The F4 Phantom. Proof that you put a big enough engine in something it will fly. I grew up watching these planes flying overhead. I could lay in my bed and knew when one flew by just from the sound of its engines. I miss hearing the roar of those planes or sitting a few hundred yards from a runway and watching them take off in tandem or in trips....
And those are my girls....
Bob