What is the most satisfying KO you've got in Brawl? Don't tell me you can't remember, everyone can recall the look on their friend's face when you knocked them into orbit.
When the game was still relatively new I was playing as Lucario against a friend of mine. The match went into sudden death and he came at me with a hammer, only for me to use Lucario's counter move to send him flying off the stage. He looked so certain of victory and didn't really know what had happened.
Feel free to sound as smug as you like.

, but I remember once when my best friend send his girlfriend flying
, it was a survival match, he was using Peach and she was a Zelda both had just one life left and over 100% damage, the Zelda was returning to the platform (final destination btw), avoided Peach Toad counter and grabbed to the edge, then Peach prepared a side smash towards the edge, Zelda makes the move where you roll onto the platform and positioned herself behind Peach ready to attack, in that instant Peach released the side smash and the tip of the golf pole hit Zelda behind, sending her flying away, oh, jaja my friend's girlfriend was sooo angry.