Best TV COP Series?

[prisoners]

I guess no one has mentioned "NYPD Blue" because everyone already knows that it was the best cop show EVER, so the discussion is for second place. That must be it, right? Kinda like "Well obviously Michael Jordan was the greatest NBA player, but who's next?" Dennis Franz has set the standard for all TV detectives, and the rest of the cast including Nick Turturo, James McDaniel, Esai Morales, and of course Jimmy Smits made for 12 seasons of great drama. The list of bit actors that have gone on to star status is endless, and the writing credits read like a who's who list of the most acclaimed people in the business.