Predict the ppv buy rate for all these fights?

All happen at prime age.

Jon Bones Jones vs Anderson The Spider Silva
Anderson Silva vs GSP
Muhammad Ali vs Mike Tyson
Sugar Ray Leonard vs Marvin Hagler 2
Sugar Ray Leonard vs Floyd Mayweather Jr
Sugar Ray Robinson vs Sugar Ray Leonard
Sugar Ray Robinson vs Floyd Mayweather Jr

None for the boxing matches since they can't happen. Phone Post 3.0