I am not sure if my opinion are unpopular but let's see.
1. Season 1 is the best season of the entire series. Season 2 is better than 3.
2. Squidward is the best character.
3. Seasons 10+ are very bad, way worse than 6-8.
4. Fools in April, Squeaky Boots, Home Sweet Pinapple, I was a Teenage Gary are amazing episodes.
5. I am with Stupid is very overhated.
6. Part Pooper Pants, The Sponge Who Could Fly, Ugh are good specials.
7. Clams is the best episode in Season 3.
8. Fear of Krabby Patty, Survival of the Idiots, Welcome to the Chum Bucket, The Alge's Always Greener are overrated(they are good, but still overrated).
9. Good Neighbors, Choir Boys, Cephalopod Lodge, Keep Bikini Bottom Beautiful, That Sinking Feeling, Face Freeze, Are You Happy Now? are nice episodes.
10. One Coarse Meal is not in the top 10 bottom episodes. The same with Pat Sitter Pat, Truth or Square, What Ever Happened to Spongebob?
11. Hello Bikini Bottom and A Squarepants Family Vacation are the best episodes in season 8 and in the top in general.