YF-23 versus T-50 versus X-32

Ill call the thread the battle of the pre production designs. XD

Which of these designs showed the most technological advances?
Which design was the most promising?
Which had the best design lines and ( is airframe as much a demonstration of art as it is form and function) design elegance?
Theoretically from the out side looking in what does the design say about how the aircraft would have ( or in the T-50s case) how it will perform?

T-50

F-23

X-32