best role ...

For me ... it was Jimmy Hoffa by a mile.

I've never been impressed with Pacino's acting or roles.
He's been in some good movies, entertaining movies, but
to me he has been hamming it up in most of them. His
attraction at the box office is that women think he's cute
and he acts mostly in guy movies, though not always. He
had a lot of charisma, but not necessarily acting chops, but
also not to say he is bad either.

I was really surprised to see how dry and straight Pacino's
acting was as Jimmy Hoffa. He did a great job, he really
caught the look of the guy and his attitude.