For me it's Video Game Cartoons (with the exception of Sonic SATAM and Sonic Boom because those actually legimitely good and Pokemon since that one is decent). This includes Donkey Kong Country, The Mario Cartoons, Kirby: Right Back At Ya!, Adventures of Sonic the Hedgehog, Sonic X, The Legend of Zelda, and Captain N. These are cartoons that I once thought were masterpieces, but after rewatching them, I realized that they were awful. However, the reason they are guilty pleasures is because unlike other bad series such as Da Boom Crew and Coconut Fred, I get a real kick out of these shows for the cheapness and corny dialogue. My favorite is The Super Mario Bros. Super Show because the show is so bad, it always resorts to pasta jokes when they need to think up of "clever" dialogue. It's so cringy and bad that I can't help but laugh. Also love The Adventures of Sonic the Hedgehog for the weirdness and oddness that the show brings and Eggman has me laughing at his corny dialogue.