It's very hard to choose between these two, since they're both in movies released in the 2000's, and they both had goals about keeping someone from doing something (wait, all villains keep someone from doing something). Gothel got furious whenever she'd see paint on Rapunzel, or squeaking noises on her stairs. Heck, she even kidnapped Rapunzel when she was a baby! The Mouse King, though, only was a villain because he enjoyed taking his role as a king, and turned Prince Eric into a Nutcracker because of that. But overall, I think Gothel is better in my opinion.