I didn't really like Depp's depiction of Wonka. Sure, he wasn't written to be a lovable character in the first place, but Depp's Wonka was borderline insane. He had his moments, but he make's Gene Wilder's Wonka look completely sane!
That's just Tim Burton for you. He can never do anything without making it slightly gothic. I didn't mind how Depp played him so much as the fact that he didn't look like the original and they added that extra father is a dentist storyline. I was also annoyed that they didn't do the sequel.