I will say that northern Italy is the last remaining part of non-Nordic culture left in the country. Southerners, those descended from the Visigoths (as the non-Visigoths were not the ones to do the conquering), tend to be a lot more arrogant. Those who are from the indigenous Italian stock are much nicer folks.
I have no doubt in my mind that many like Annabella Sciorra and Aleksa Paladino are northern in ancestry. They seem to have a northern Italian sensibility to life. And Annabella is a true tough girl.
Southern Italians aint tough. They're just arrogant. Northern Italians are the true ones who suffered in America if you ask me.