For me, the best are when he says "it´s like Endora´s box" and Jerry says "you mean Pandora" and Kramer goes like "oh, no she had a box too" it was hilarious! The episode is the same as Anytown USA.
The other one in "The Keys" when Jerry and George visit him in jail and he looks so happy because he will get out by noon, and when he´s about to go back to his cell he asks the guard to let him "act" like he doesnt want to be there and starts yelling and the guard takes him away.
The other one, that brought tears to my eyes because of the hard laughter, was when he gets paid to stand in line at the police station, that was amazing!
LG