7.56 avg 9 episodes 7.6 → 7.8 42 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | The First Kingpin: Juan Raul Garza | 7.6 | 22 |
| 2 | The Ultimate Outlaw: Harry 'Taco' Bowman | 6.8 | 25 |
| 3 | The Godmother: Griselda Blanco | 7.9 | 21 |
| 4 | The Mayor of Harlem: Alberto 'Alpo' Martinez | 8.2 | 22 |
| 5 | Machine Gun Johnny: Johnny Eng | 7.2 | 19 |
| 6 | King Blood: Luis Felipe | 7.0 | 20 |
| 7 | Anthony Shea and the No-Name Gang | 7.9 | 22 |
| 8 | The Queenpin: Jemeker Thompson | 7.6 | 20 |
| 9 | Lethal Beauties: Beltran, Henao, & Garcia | 7.8 | 16 |
7.66 avg 15 episodes 7.9 → 8.4 42 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | The Black Hand of Death: Clarence 'Preacher' Heatley | 7.9 | 17 |
| 2 | The Shadow Kingpin: Bartolome Moya | 7.6 | 12 |
| 3 | The Pot Princess of Beverly Hills: Lisette Lee | 7.1 | 11 |
| 4 | The Mongol Warlord: Ruben 'Doc' Cavazos | 7.5 | 14 |
| 5 | Philly's Gangster Queen: Thelma Wright | 7.4 | 11 |
| 6 | The Colombian Rambo-Carlos Lehder | 7.4 | 13 |
| 7 | The Kingston Kingpin: Christopher 'Dudus' Coke | 7.2 | 10 |
| 8 | The Baron of Brotherhood: Barry Mills | 7.5 | 12 |
| 9 | Mother of the Avenues: Maria "Chata" Leon | 8.5 | 9 |
| 10 | Kansas City Kingpin: Alejandro Corredor | 8.0 | 5 |
| 11 | Sex, Money, Murder, Inc.: "Pistol Pete" Rollack | 8.0 | 11 |
| 12 | Los Muchachos: Augusto Falcon and Salvador Magluta | 7.4 | 9 |
| 13 | The Cutt Boyz: Terrence Benjamin & Derrick Washington | 7.4 | 8 |
| 14 | Bird & the New Breeds: Dana Bostic | 7.6 | 10 |
| 15 | "Q" The Motor City Connect: Quasand Lewis | 8.4 | 7 |
8.17 avg 9 episodes 7.5 → 8.3
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Juan Ramon Matta Ballesteros | 7.5 | 7 |
| 2 | Dustin Honken | 7.4 | 8 |
| 3 | James Spencer Springette | 8.1 | 10 |
| 4 | Ludwig Fainberg | 8.6 | 9 |
| 5 | Demetrius & Terry Flenory (BMF) | 9.0 | 9 |
| 6 | Alex Rudaj: The Patriarch of the Sixth Family | 8.6 | 14 |
| 7 | Best Friends Gang | 7.8 | 6 |
| 8 | Rances Ulices Amaya | 8.2 | 6 |
| 10 | Cheng Chui Ping | 8.3 | 7 |
7.54 avg 5 episodes 6.8 → 8.4 44 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | James 'Whitey' Bulger | 6.8 | 6 |
| 2 | Timothy McGhee | 8.1 | 10 |
| 3 | Vincent Smothers | 8.0 | 6 |
| 4 | Raquel Hortencia Medeles-Arguello | 6.4 | 5 |
| 6 | Ross William Ulbricht | 8.4 | 5 |
7.94 avg 8 episodes 7.1 → 8.4
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | The Mafia Cops: Louis Eppolito & Stephen Caracappa | 7.1 | 7 |
| 2 | The Harvey Hustlers | 8.3 | 10 |
| 3 | The Iceman: Richard Kuklinski | 8.4 | 6 |
| 4 | The Teflon Don: John Gotti | 9.0 | 7 |
| 5 | The Philly Menace: Kaboni Savage | 8.0 | 7 |
| 6 | The Godfather of Montreal: Vito Rizzuto | 7.2 | 7 |
| 7 | Sammy The Bull | 7.1 | 7 |
| 13 | Bruce Johnston: The Johnston Gang | 8.4 | 8 |