Everyone keeps blaming the writers for how Kermit has been for the past 20 some-odd years. But I can't be the only one who got aggravated at the way Whitmere performed Kermit on live appearances on talk shows and other engagements, right? That stupid "this is my frozen frog face" joke repeated ad nausium got on my nerves.
And Henson's Kermit's appeal is that deep down, he really was a bit of an ***hole. He treated Piggy badly on many occasions and really let her have it without backing down, he would slam Fozzie and Gonzo very subtlety in ways neither of them were savvy enough to understand, and there was always a tinge of "this is beneath me but whatever it's a gig" in his voice whenever he appeared on Sesame Street. Jim had a way of making Kermit so darn funny that didn't come from writers. It came from Jim and how in tune he was with his own creation.
I never felt that from Whitmere's Kermit, no matter what production he was in or which writers handled him. His Kermit was very different. He was a bit of a too-friendly wuss who was quick to get frustrated but also quick to back down in fear of upsetting anyone. That's part of both the writing and the performance. Whitmere's performance of Kermit telling Piggy off in MMW is so different from how Jim would do it, and it's not about how it was written, but it about how toothless his anger and exasperation would be. Whitmere's Kermit was a depressed wimp. Jim's Kermit knew he was the center of the universe, and a small part of him got off on it.
That stuff you can't credit or blame writers for. It's totally about how Whitmere and Henson interpreted the character.