In the 80's the fight i wanted to happen but didn't was a light flyweight fight between -
South Korea's Jung koo Chang and South Korea's Myung Woo Yuh.

Jung koo Chang won the WBC light flyweight title in 1983 , losing it in 89.

Myung Woo Yuh won the WBA light flyweight title in 1987 losing it in 91.

Both were tremendous fighters who could box and fight ( neither was regarded as a big puncher )
they both made around 15-17 defences of their titles.I think this would have been a classic match up, but with boxing politics we were never given the chance to see who was the better man.
This may not be the top of the list for you guys but please share your fights that never happend.

PS. another i would have loved to see if Bonecrusher hadnt spoiled it was TYSON V Whitherspoon , this was the best fight of the unification that never happend.
Also at feather Azumah Nelson v Barry Mcguigan this would have been a real classic.
Look forward to your posts guys.