Wow, some of you lot need to see (A LOT) more gangster flicks if you consider Mean Streets, Casino. The Godfather Part III etc the worst! :rolleyes:
Love, Honour and Obey would get the nod from me. Either that or Prizzi's Honor. I found The Krays very overrated, but it is by far not the worst. Scarface, if it can even be considered a Mob film, is a candidate for worst too.
As for the best: as a Mob film, Goodfellas or One Upon a Time in America are the best. The Godfather is THE best film, but it has strong family overtones, and the Mafia theme could have been many things, really. Mob RELATED films that are excellent: Raging Bull, Casino and Mean Streets. Donnie Brasco is also very good (thought I hear the book is better), while I also recommend The Long Good Friday and Sexy Beast.
Mick