Czarivey, I believe you are referring to Herbie Mann.
Hancock's Blue Note recordings are a very good example of the old adage that, the better the music, the worse the recording.
I'm not so high on late model Herbie, but "The River" covering the songs of Joni Mitchell, who he worked with extensively, is nice music, well recorded. But IMHO, it still pales in comparison to the Blue Notes, but these are matters of taste, and Hancock, like Mitchell, has traversed so many styles and idioms that it's hard to pick a best.