Whitney will always be the greatest voice. Although she doesn't sound the way she used to, she's still miles above the rest. As for the sexual aspects of Janet, Madonna AND Mariah: Janet's was a natural progression because she wasn't always that; she sold without the sexual image first. Janet has toned her imagery down some now. You don't see her breasts and stomach like we did with the last album. Madonna just wants to get noticed. If you notice, she's back to her sexual imagery again, just toned down. Mariah needs something to sell, cuz her voice ain't hittin on it anymore and she's a terrible performer.