I like:
Frank: "Her father would look at me and say: Ee-know, Ee-now-ah, Shee-oh. Which means: This guy..... this is not my kinda guy."
And:
Frank: "You wanna divorce? You got one!"
Frank: (yelling) "Your mother has to tell you every move I make?!" (calm) "I'll kill 'er..."
Frank: "I can understand Elaine not saying hello... she's very, what's the word? Supercillious." (yelling and slapping hand) "How could Jerry NOT SAY HELLO?!"
George: "Maybe it's a mouse." Frank: "All right! That's it! We're movin'!" George: "But you haven't even seen one!" Frank: "I will not tolerate infestation!"
There are many more but time pretty much stops me from including them. hehe. Oh, just as a side note here, and shameless promoting, my web page is up. It's gonna have a nice Seinfeld page on it but it's only 6 days old so it doesn't exist yet. But it will... muwhahaha <---evil laugh.
http://www.acsu.buffalo.edu/~rcameorn