I would have to say the owners of the LA Clippers, Detroit Lions, and Pittsburgh Pirates are among the worst. It's all about winning and losing, and none of these organizations have come close to winning a title in almost 20 years.

While I do not disagree that Al Davis is a lunatic, he cannot be on the worst owners list because he has won Super Bowls and was among the league's best within the past decade. He had the Raiders on the cusp of the Super Bowl in 2000 & 2001, while then reaching the big game in '02. That said, he does need to step aside.