i agree with everyone, but there is alway one that never comes up in these conversations that I absolutely love. Its a scene is season 1, episode called Game Day, where Herc and Carver notice the streets ae empty and that everyone is at the bball game. they hear Avon's name but don't know what he looks like so they call the whole detail. They procede to follow Avon after the game but Avon catches on and when he drives by Daniels he waves his finger at him. It's amazing.
Also, in the season 3 finale montage at Avon's trial where Marlo and Chris come in nd avon mouths, "Marlo?"
Its the little thing like that I lov about this show.
Of course the F-bomb murder solving in S1 and Randdy ylling at Carver down the hall in S4 too.