This topic has been done countless times before, but it sure made some interesting and fun threads in the good old days. Why don't we have another one?
Here are my favorite episodes from Seasons 1-13. What are yours?
Season 1 -------------- Best: Krusty Gets Busted Worst: Some Enchanted Evening
Season 2 -------------- Best: Itchy and Scratchy and Marge/The Way We Was (That's a tie, folks) Worst: Dancin' Homer
Season 3 -------------- Best: Flaming Moe's (I could've picked almost any episode from this season, those were THE days) Worst: Lisa's Pony
Season 4 -------------- Best: Last Exit to Springfield (Tough choice, another super classic season) Worst: Treehouse of Horror III
Season 5 -------------- Best: Homer's Barbershop Quartet Worst: Marge on the Lam
Season 6 -------------- Best: Lisa's Wedding Worst: Fear of Flying
Season 7 -------------- Best: Mother Simpson Worst: The Simpsons 138th Episode Spectacular
Season 8 -------------- Best: The Itchy & Scratchy & Poochie Show Worst: El Viaje Misterioso de Nuestro Jomer
Season 9 -------------- Best: Bart Carny Worst: The Principal and The Pauper
Season 10 ---------------- Best: Lisa Gets An "A" Worst: Homer Simpson in: "Kidney Trouble"
Season 11 ---------------- Best: Seriously, none Worst: Saddlesore Galactica
Season 12 ---------------- Best: New Kids On The Blecch (Great satire at those plastic "music" bands I hate and despise so much) Worst: The Computer Wore Menace Shoes
Season 13 --------------- Best: Again, none Worst: The Frying Game
Seasons 1 through 7 were terribly difficult to rate. Most episodes from those days are fantastic and true classics, especially the first four seasons. Cheers!