I thought they were all great. But if I had to pick one, it'd be the Genco scene. Chock full of details that help explain the remainder of the film.

Ntra la porta tua lu sangu � sparsu,
E nun me mporta si ce muoru accisu...
E s'iddu muoru e vaju mparadisu
Si nun ce truovo a ttia, mancu ce trasu.