I'm not talking about characters such as likeable villains like Jafar or Hades, I'm talking about the characters that are such jerks that you love to hate them. And Disney has had quite a few of them. Also, this thread is exclusively Disney only, and not including their subdivisions like Pixar, Marvel & Lucasfilm. Off the top of my head, these characters are just slime, plain and simple:
King Triton|The Little Mermaid
John Ratcliffe|Pocahontas
Frollo|The Hunchback of Notre Dame
Razoul|Aladdin (I know he wasn't really a villain later on, but he still holds a grudge against Aladdin just because he's a street rat. Prejudice much?)
The Sheriff of Nottingham|Robin Hood
Gaston|Beauty and the Beast
Ed Dillinger|TRON
Allister Krei|Big Hero 6
Bellweather|Zootopia