Compared to my list, I definitely have a different opinion on what I'd consider the worst as I think some are gross, but relatively harmless (RandomLand, Bad Habit). Some I'd actually consider decent or good (Senior Discount, Jolly Lodgers).
That leaves us with The Nitwitting, which may be the single most-fundamentally wrong episode in SpongeBob.. or if not for shows in general. It lacks intelligence and its' incapability of being self-aware makes you laugh at how bad it is, or how utterly dreadful it is. I obviously felt the latter.. if not most.
And the final problem is that the appeal level won't hit anyone. Old fans will dread it, new fans will dread it. Stupid 5 year-olds picking their nose will dread it. Nothing wrong with liking the episode, but there's a clear sign that you really have to get deep into it to like it, or just have a fond sense of dumb humor.
Also, there was no need for a political reference (F.E.M.A), as SpongeBob doesn't need to push political agendas.
I guess since I went on a whiny rant on SpongeBob, why not put down my bottom 5?
1: Nitwitting
2: Biddy Sitting
3: Bubble Bass' Tab
4 - I actually have one, just forgot.
5: Boss For a Day