I'm really surprised at half of what's on your list, considering you've named a number of modern-day CN cartoons, and most, if not all, CN cartoons these days are pure crap.
No... that's matter of taste stuff. A lot of CN fans who live in the past hate these shows and refuse to give them a chance. If nothing else, PLEASE try out Scooby-Doo. They did a much better job here than What's New Scooby-Doo. And I like WNSD.
But, hey... you want crap, I'll give you crap.
Here are some of the top crappiest cartoons of all time:
Fred and Barney Meet the Thing: Fred and Barney actually MEETING the Thing would be interesting... but instead, we wind up with Thing from Fantastic Four in an alternate universe where Ben Grimm is a complete nebbish, hangs out with various ripoffs of Archie and Fat Albert character types, can summon the Thing by chanting a lame rhyme and putting 2 rings together (wow... power from Rings? What a concept), and the Thing barely shows up at all, except to swing around robots because he can't punch anyone. And did I mention the plot lines are mindblowingly generic.
2002 Strawberry Shortcake: Now, I kinda hate the show anyway since I hate 1980's girly cartoons... but EVERY episode is let's have a very mild party and the show's basically all about getting ready for the party and singing. It's almost as borning as...
My Friend Rabbit: Perfect for preschoolers that like all things drab and dull. Imagine Winnie the Pooh with all the complicated parts and any dramatic tension removed. Now think of something worse than that. At least they don't talk down to kids like...
Super Why: Not touching this one.
Mary Kate and Ashley in Action: You know what's better than cashing in off of the Olsen Twins? Waiting until no one likes them anymore to do a cartoon series.
Cartoons made after bands: Really... in the case that The Beatles and Puffy Ami Yumi are the good ones, you know something's up. Ever try to watch Jackson 5? Great music, horrifyingly bad cartoon series. Cartoons about fictituous bands are always AWESOME... California Raisins, The Chipmunks, the highly underrated lost "The Beagles." But when they do real bands and invent personalities that don't exist... why the heck is Ringo an idiot? Ringo's not an idiot. He's the wacky one, sure... but he was NEVER an idiot. (Ringo's my favorite, can't you tell).
Maxie's World: Did a YTP of this one, and could BARELY watch the episode to do it. How come Barbie never had a cartoon series, and better yet, how come Mattel didn't sue over this one. Why the only girl's fashion doll based cartoon worse than this is...
Bratz: Oh SURE! That NEEDED to be a cartoon. How come they have to force positive female role models on boys cartoons, but girl's cartoon characters can be vapid spoiled princesses. Wendy Malick was a WASTE in this show. Passive agressive bad Barbie parody the villain aside, this is just a bowl of hot sick. And BAD CGI.
Street Sharks: Terrible... terrible cartoon. Bad TMNT Ripoff, at least the toys were good, and the villain concept was kinda cool... but all over, just terrible... Extreme Dinosaurs was actually worse.
Fleischer's Gabby cartoons: Waste of money, waste of talent, waste of time... does anyone you know even remember Gabby?
New George of the Jungle: Animation was actually pretty good. Only thing good about the in name only remake of the show. Gone was the sly humor, replaced by frantic My Gym Partner's a Monkey tone.
Speaking of which...
My Gym Partner's a Monkey.
Lesse what else...
Oh, a good chunk of Hanna Barbera's 1970's cartoons... HATE Amazing Chan and the Chan Clan, Jabberjaw never interested me.. I LOVE Hong Kong Phooey like a child, but everything else was junk... especially the...
Tom and Jerry Show. If you see Jerry with a Bow Tie, steer the HECK away from it. Even Filmation managed to get the show right. Even the movie has some YTP/Internet meme fodder in it... but DON'T EVER watch the Tom and Jerry/Grape Ape/Mumbley Show episodes of Tom and Jerry... and Grape Ape... still don't get it.
Mortal Kombat, the Kiddy Friendly adventures: a PG-13 game... as a cartoon...for kids... where's the GTA cartoon series where they have to fight aliens and not steal cars? Where's the Leisure Suit Larry game where he rides in a van solving G rated Mysteries... where's the Custer's Revenge cartoon where... you can see where I'm going.
Uh... there's a long list... uh
the 1970's Godzilla show... or as I like to call it, the cheap Johnny Quest self ripoff that somehow has Godzilla in it...
Alienators: Evolution continued....
okay... try to tell me it's not a ripoff of Real Ghostbusters.
Go ahead...
Here's the theme song...
http://www.youtube.com/watch?v=Y61h1mOQvhc
Now TRY to tell me it's not a RGB ripoff.
I'm tired, more later...