Mine are:

Andy Sipowicz
Greg Medavoy (Favorite)
Baldwin Jones (Second Favorite)
John Irvin
Connie McDowell
Tony Rodriguez
John Clark Jr.

Andy Sipowicz

Easy to say andy, but he grew tiresome to me after a while. I actually liked Bobby more, but it's hard to argue with all those emmys. I also felt it was wrong installing John Clark directly after the Danny Sorenson experiment. They were too similar in looks and age, and I felt the Sipowitz-Uncle Mentor angle had been done too death already with Danny. NYPD would have been better, I think, if they had cast someone like Mos Def as a hard-nosed black detective to play opposite Sipowitz instead, especially in wake of Fancy's departure, because Henry Simmon's gentle giant good guy persona made me puke. But whatever. Just a few thoughts.