Some of his finer moments (in no particular order):
1. The way he acted in attempting to claim compensation at the hospital (The Bris) 2. Telling of the event in which he saved the beached whale (The Marine Biologist) 3. Explaining his exit because of the fire at the kids party (The Fire) 4. Declining the offer to go up for "coffee" then realising what it meant (The Phone Message) 5. Explaining himself to the gang because he was "caught" (The Contest) 6. Telling Steinbrenner what he thought of him, at the Yankees (The Opposite) 7. Creating the alias Art Vandelay and pretending to be an architect (The Stakeout) 8. Said George to the housekeeper who couldn't speak English, "I would like to dip my bald head in oil and rub it all over your body." (The Old Man) 9. His misfortunes in trying to get a Twix from the vending machine, and finally giving in with a yell of despair (The Dealership) 10. Going to great lengths in delivering the perfect comeback (The Comeback) 11. Buying the last copy of Time magazine and therefore making fun of the convict that also wanted it (The Airport) 12. Hiding/moving the suit at the clothes store so that his 'rival' couldn't buy it (The Pie) 13. Angering the Bubble Boy by insisting "it's MOOPS!" 14. His reaction to the sponge bath scene(s) at the hospital... (The Contest, The Outing) 15. His endless determination to please Jerry's masseuse girlfriend, just because she didn't like him (The Masseuse) 16. His endless determination in getting revenge on Rachel, eventually putting lobster into the eggs for breakfast (The Hamptons)
I assure you I have not copied this list from anywhere! I created this list myself. Feel free to discuss this list, add any other classic plots/moments that have been left out.