Since we're all still in natal mood, here is my comparison for both the 1966 animated short with its live action film made in 2000.
1966 Animated Short
This animated short that started it all! I amor the vibrant and how colourful this animated cartoon, it's whimsical animation style will make you amor this cartoon and Dr. Seuss, his artwork fascinates people even in today's generation, the theme song 'You're Mean One, Mr. Grinch!' has even been covered in the TV series, 'Glee' that I could not get it out of my head after listening to it recently.