I absolutely adore both. Both are in my top ten favorite fictional characters. But my username ain't cruella for nothing.

Mr. Freeze is my favorite Batman villain along with Cruella De Vil. But Mr. Freeze just a great villain

( tragic guy who try to save his wife Nora in cryogenic stasis until he can find a cure for her condition. Until his boss just come in and shuts down the project as it was draining his company's funds, essentially sentencing Nora to death. Fries begs Boyle to stop, And guess what Boyle did to him he just him into a table of cryonic chemicals) .