This is one of those shows that I really didn't care much for during its initial run, and only found some likability of after it ended, and even then, I can only watch so much. Honestly, the characters drive me crazy. It certainly has moments, but I don't know what my favorite of them would be.
I will say that, after spending most of my adult life dealing with the public, I empathize more and more with the Soup Nazi. Because the average customer is an idiot and needs to be treated like that.