boss: totò riina
underboss: carlo gambino
consigliere: bernardo provenzano
capos:
tony accardo
matteo messina denaro
salvatore maranzano
lucky luciano
tommy lucchese
frank costello
michele greco
ciccio madonia
nitto santapaola
joe profaci
killers: pino greco, roy de meo, albert anastasia
Knowing Toto' Riina's mentality, he and the other Sicilian bosses would probably try to kill the American bosses you listed, because they are too charismatic and wouldn't obey him.
Who would have won?