I think this proves the 80's had a much more original sound, less samples and covers.
The 90's was the era where niggas ran out of ideas and got by- by sampling and making cover songs and albums.
80's had the last dying gasps of disco
80's had the funk
80's had the r&b
80's had the soul
A much broader selection and talent pool to choose from which I tried to show in my choices.
I think the fact that we keep seeing a resurgence of 80's style anything over the 90s should also be proof enough.
80's >>>>>90´s.