Michael Musto recaps his love/hate/more hate/grudging respect relationship with Madonna for his old bosses at the Village Voice. He talks a lot of sense, though I must say—in spite of my dislike for Britney Spears—I do disagree that Madonna macking on the younger pop star (and Christina Aguilera was there, too, guys!!!) was unartistic and had no appeal. I fucking loved that moment. It was unreal how real it was to Justin Timberlake and to the teen-pop world, and though it was well-worn ground for Madonna, it was a point worth remaking in an iconic way.
I would say you can find more of Michael's always-entertaining (and firsthand) Madonna musings in my book, Encyclopedia Madonnica 20, but in fact you will find less. That sounds like a bad sales pitch, so instead I'll say:
You can find a different version of Michael's always-entertaining (and firsthand) Madonna musings in my book, Encyclopedia Madonnica 20!
In the end, I think his take on Madonna is that he knows she's a force, but doesn't have the affection for her that he has for Diana Ross or Lady Gaga. But they never kicked him out of his dressing room.