Just my opinion but as far as Gambino goes i think after Lucchese died in 67 he was most definitely the first among equals. From 67 to 80 i think the Gambino's were the most influential family. That changed when Angelo Bruno was killed and the Gambino's lost his vote on the commission. Leonetti even said Tieri wanted Caponigro's territory but he also said he always suspected Gigante was more interested in getting his proxy in the top slot in philly so he could control their vote on the commission. After 1980 i think the Genovese regained their top spot with Gigante. But again it's just my opinion.