Nonesense. When MJ released an album it became automatically a "best of" lol. Look at BAD for example, out of 11 songs, 10 were hits and only one was not released on video "Just Good Friends", but it doesn't mean that it was a bad song, but just radio not friendly.
As far as other songs are concerned, and as far as I am concerned, NONE of MJ's songs are bad or least favorite. When I listen too much to some of the songs, I switch back to the others, and so on.
Even the J5 and the Jacksons songs are all good. Sorry, but MJ's voice and style is so unique that he could record a song with an orchestra slamming the kettles, dishes, plates and the cuttlery in a subway station and sing random notes improvising the text, it would still be a good song. And no, I am not exagerating, I'd pay for such a song.