Armand Assante played the best Gotti on screen.
You are right about that. It was an amazing performance.
Anyone interested can watch him in the whole original HBO movie "Gotti" in 14 parts on YouTube. See: "Gotti" Part 1 of 14. (Links to the other 13 parts can be found at the same page).
BTW, it was the success of this movie that convinced HBO to greenlight The Sopranos. In fact, many of the actors in "Gotti" ended playing key roles in the series (Uncle Junior, Paulie Walnuts, Big Pussy and others).
Armand Assante played the best EVERYTHING!!!!!!!!!!!