Manic The Hedgehog, HP Bloodshed, I totally understand your concerns, but the truth/reality/fact is that there is no perfect episode by proven fact, everyone has different tastes in many episodes. For example, I honestly like the Season 15 episode "Funnybot" while everyone else in the wiki does not from what I remember. Also, the Season 16 episode "Butterballs", I don't like that episode while everyone else does.
So you see, people are allowed to express their own opinion on many episodes whether the opinion is the same or different. If they like the episode, then that's perfectly fine. If they hate the episode, then that's perfectly fine to. It all depends on us whether the episode's good or bad. So you can say "Oh, all the episodes are great" all you want, it really makes no difference, all you're doing is expressing your opinion as well which indicates that you've never hated any episode in South Park.