Who is the best "hard-bop" jazz musician is not determined by some authority figure, but by a consensus of jazz musicians and jazz aficionados on the street; primarily in big cities. You can feel free to disagree with that consensus.
Clifford Brown was considered the best until his death. He was killed on June 26, 1956; I was living on the South Side of Chicago with my older cousin who had only recently introduced me to Clifford Brown. The remarkable thing about being the best, is that even after death, a musician can still be considered the best.
https://www.youtube.com/watch?v=nt_fmhtePoc
Not until Lee Morgan was any musician unanimously considered the best. He died February 19, 1972 at age 33. As I stated, a musician can still be considered the best even after his death.
https://www.youtube.com/watch?v=NHN6-yWFKPc
For a short while, before Wynton Marsalis left Art Blakey, he was considered the best. That's because as a trumpet player, he was comparable to both those musicians. It was not until he became his own man, making his own albums which did not live up to what was expected, and were not in the same league as the music of Clifford Brown or Lee Morgan that he was no longer considered the best.
However, since he also played classical music, I think he was still considered the best by the establishment; hence, Lincoln Center.
Of course, the assessment I made can be challenged.