Like Pizza said it has to be the Genovese and Lucchese, and i think a big reason is the are where they operate the Bronx is so different from the other boroughs, the bigger poverty leads to more crime which leads to LE having to focus on more violent crimes which leaves many of the bookmakers, pot dealers, loan sharks and other OC activities to operate more openly
That's a big part of it and perfect examples of there being more blue collar LCN guys left in the Bronx and Westchester than in Manhattan and Queens (there are practically zero in Manhattan).
However, it's the construction partnerships that I'm referring to when it comes to the white collar money. They're incredibly profitable, completely legit and unbreakable.
The partnerships that the DiNapolis formed with Stevie and the old Salerno and Prince Street Crews back in the '80s are still honored, alive and well, and built on solid enough legal ground that the Feds can't touch them (unless they start inventing new laws, which is par for the course for agents and prosecutors in Federal Government).
