Seasons 5-6 were dogshit though
1.The Eds are less likable and were kinda flanderized (although not the worst flanderization). Ed became a too-dumb-to-live idiot, Edd became a constantly complaining goody two-shoes, and Eddy became a unlikable and violent loud mouth.
2.Jimmy is still a vengeful jerk for no reason.
3.Jonny 2x4 is still an annoying, loudmouth goofball and saboteur who hasn't functioned without Plank since Season 3.
4.Some bad episodes, such as "Smile for the Ed", "Cleanliness is Next to Edness", "Tinker Ed", "The Good, The Bad and The Ed", and "Look Before You Ed" (the last episode of the show produced).
5.Season 6 only had one episode (two if counting both segments). How disappointing is that?
6.These seasons had more gross-out humor than the first four seasons did.
7.The Kanker Sisters reached the high ungodly levels as Villain Sues in these seasons.
8.Some of the episodes had plot-holes, plot twists, and continuity errors, such as for example, in one of the episodes, "A Town Called Ed", its revealed that the Kankers' ancestor, Lord Kanker, beats Eddy's ancestor in a poker game over the land and founded Peach Creek and the Kanker sisters themselves own Peach Creek, despite that in their debut appearance episode "Nagged to Ed", its mentioned that they're not from Peach Creek and if they have a family member that founded Peach Creek and own the area, then how come nobody in Peach Creek are aware and know about that, especially that their home town is owned by a trio of mean, female bullies who stalk, sexually harassed (in the Eds' case), bully, and torment people on a regular daily basis?
9.The endings of some episodes can be predictable or just plain bad.
10.The fifth season doesn't focus on scams very often. Sure, the first four seasons had a few episodes where Eddy doesn't get the two Ed boys to scam the neighborhood kids, and at least most of them were good. But in the fifth season, it's somewhat done a lot.