Miller was a good shooter and at one point had other elements to his game. His clutchness and longevity are definitely factors, cool also that he played his whole career in one place so obviously Pacers fans love him.

He was a borderline HOF selection, at least before the standards dropped.

Allen, however, is better in literally every facet of the game. Steve Nash was also both a better shooter and better all-around player than Reggie, even on defense!