I saw way more versions of A Christmas Carol than I could include in the episode, so here, briefly, are some awards.
As mentioned in the episode:
Favorite adaptation: 1971 cartoon.
Best Scrooge: Alastair Sim, 1951
As for the rest?
Could have been the best Scrooge if there weren't a punchline after every line he says: Michael Caine, Muppets
Worst Scrooge: Taylor Holmes, this really awful 1949 TV version where everyone's American except Bob Crachit, and everyone looks like they hate themselves, including Vincent Price, who is narrating.
Worst Scrooge who's actually trying (like really, really trying): Albert Finney, 1970 musical. Guys, he's 34 years old when he plays Scrooge. I just don't care for the hunch and facial contrition and vocal croaking he does to seem old and miserly. At all.
Best ghosts: (tie) 1971 animated cartoon and the Muppets Christmas Carol. There's something magical about seeing adaptations freed from human actors to portray the spirits.
Worst ghosts: 1935 version. A Marley who says "Only you can see me" because he's invisible to us, the audience; a Past who's just a light effect; and a Future who's just a shadow. Tsk tsk tsk.
Best Bob Crachit: 1935 version. But the performances in the 1935 version are so so good.
Best duck: Scrooge McDuck. Very good at being wickedly mean and still funny.
What about Scrooged?: I thought it was very funny in parts, and didn't care for the movie all that much. Especially the hostage situation at the end...