Sammy Gravano is a pretty good storyteller and a likeable personality,but for me,my #1 rat is Henry Hill.

I used to listen to him on Howard Stern,and he was either drunk or high before and during the show.
Stern had to constantly remind him not to use the "F" word ( pre-satellite radio).
Lots of people who knew him from the street would call in and just rip him apart for being a scumbag.
He even took a call from "Spider's" sister who pleaded with him to tell her where her brother was buried so they could give him a proper funeral.