The Star Wars sequel trilogy, first off. I would say anything Disney in Star Wars, but the Mandolorian is legitimately good. Aside from that pre-disney canon is what I go by. Yes Mara Jade, you can exist.
After that, the sequel to Jack & Daxter. The first game was just this kid and his weasel friend, going around this tropic island, beating up monsters and whatnot. But then the second one... dark city future, torture/experimentation, running from the system... it was just a very dramatic turn which completely horrifyed me and didn't fit into the dynamic of the first game at all.
And finally, Beast Machines. This show takes place after Beast Wars, which is a show that came out after og Transformers and takes place in the future/past (it's kind of hard to explain). Anyway, Beast Wars had a good ending. Beast Machines completely crushed that, ripped up the main characters, and shoved them into a weird plot with environmental themes on a planet that is literally called CYBERtron. Needless to say a lot of fans don't like it, and prefer to leave things where Beast Wars left off.