SWV's "Weak" should have been on the list.
Janet should have been on the list with "Anytime, Anyplace"
TLC's "Creep" and "Bany Baby Baby" even if you got rid of "No Scrubs"
Certain artist defined 90s "R&B" including mary J, Janet, Toni Braxton, TLC, R. Kelly, Aaliyah, Brandy and a few others. That should have did the top R&B artist of the 90s.