no one said that either, nothing about the 90's was about just "one", you're bringing that 2010's bullshyt into the equation. there was a crew of women who ran 90's r&b, mary was definitely one, and of course she's the queen of her lane within r&b - hip hop soul. how you pioneer a lane and then not be considered a person who ran the decade?
janet - pop/r&b
whitney, mariah, toni - pop/adult contemporary/r&b
erykah - neo soul
mary - hip hop soul
brandy/monica/aaliyah/mya - ran teen r&b
people had different lanes but were all running the decade
as to your last sentence, you're just talking to talk at this point. mary beats toni in a verzuz hands down, that's what this convo started about and that's where i'll end it.