I don't particularly like Depp's Mad Hatter, since I haven't been fond of any of his roles other than Jack Sparrow. But I don't hate the Hatter so much as the fact that Burton made a relatively minor character in the book the focus of the movie, rather than the character it SHOULD have been focused around (Alice).
I loved Johnny Depp's rendition of the Hatter! He gave the character dimension and depth to a character that has other gone flat with the stereotype of being crazy. Depp's portrayal was genius. I saw a multifaceted Hatter that I never thought I would see.
I think Depp's Hatter was lazy. I felt like I was watching Pirates of the Caribbean. He's a great actor, but I feel like all his querky characters are the same. He's so much better than this Jack Sparrow/ Willy Wonka/ Mad Hatter business- look at Donnie Brasko, The Ninth Gate, Dead Man, Don Juan DeMarco. He's much better off in a more serious role.