Worst: Takeshi Kitano (Brother)
Takeshi Kitano doesn't only make Yakuza films -- they just happen to be what he's best known for. After achieving worldwide acclaim with violent crime sagas such as Sonatine and Violent Cop, Kitano tried to take on America with the Yakuza-vs.-Mafia film Brother.
The film wasn't a complete disaster, but most people dislike it, and Kitano himself has vocalized his disapproval for the final project. Since the failure of this experiment, Takeshi Kitano has yet to make another English film, which is fine so long as we keep getting films like Outrage and Outrage Beyond as well as his awesome take on Zatoichi.