No.
To me there is a difference between Gangster and Mafia films.
GF I & II are the greatest "Mafia" movies ever, with Goodfellas a close runner up.
As far as the greatest "Gangster" movie, I think that distinction goes to "Once Upon A Time In America"
"You don't make up for your sins in church. You do it in the
streets. You do it at home. The rest is bullshit and you know it."
----Mean Streets---
"Business bad? Fuck you, pay me. Oh, you had a fire? Fuck you
pay me. Place got hit by lightning huh? Fuck you, pay me. It was
beautiful!". ---Henry Hill in "Goodfellas"
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