Favourite Simpsons scenes
 

Yeah there's millions and we all have our favourites.
I particularly love Homer pretending to be Mister Burns:
Homer: "Hello, my name is Mister Burns. I believe you have a package for me."
Post Office worker: "Okay Mister Burns. What's your first name?"
Homer: "I don't know..." :laughing:

Also Homer hitting the wall with a hammer, getting electrocuted.
"Man that hurt! Now to do exactly the same thing again!"

Burns (answering doorbell): "Come in! Welcome! (under his breath) Ah, excellent! Fresh victims for my ever-growing army of the undead!"
Smithers: "Sir, you have to take your finger off the button..."
Burns: "What? Son of a -"

When Homer finds out that he can't drink when he becomes Duffman: “You wouldn’t tell Batman he can’t eat bats!"

When the stadium is swarmed by Africanized bees

Bumblebee Man: Stop, I am one of you!
Africanized bee: (buzzing translated in subtitles) We hate you most of all, Uncle Tom.

"Three kids and no money? Why can't I have no kids and three money?"

or

"Bart! Stop terrorizing the grad students. It's not their fault they made bad life choices."

The second one is paraphrased.

Favourite eps are probably King Size Homer and Lisa the Vegetarian.

From King Size Homer;

Lisa: My dad may have gained a little weight but he's not some food crazed maniac.

(Homer drives past in stolen ice cream truck)

The Stonecutters:
"He is one of us! Remove the stone of shame!"
"Woo-hoo!"
"Attach the stone of triumph!"
"D'oh!"

"Now let's all get drunk and play ping pong!"

In the proud and ancient tradition of our forefathers. :)