not too interested in MJ coz he'll probably just come back with a bunch of beautiful children of the world clap trap songs, whitney is just boring so even if she does have a good song no one will care about it. Britney on the other hand hasnt released an album for close to 4 years and shes had soooo much press since last time so I think she'll be most sucessful. Also her career peaked again with Toxic, Everytime and the Greates Hits Album so the interesest should still be around.