What 2 fighters would make the perfect fight..?

[ICB]

I don't understand people picking people like Harry Greb, when there's no actual fighting footage of him is there ?

Neither is there any of Robinson at 147.

Yes but i've actually seen footage of Robinson and plenty of highlights, so i can atleast have an opinion on him. Where as to my knowledge there is no footage of Greb at all so thats why i don't get people picking Greb, when they can't base any opinion on him because they've never seen him fight. Not trying to be an ass or anything just giving my two cents.