It's got to be Al Davis, but Bill Bidwell and Mike Brown are not larger than they appear in his rear view mirror. Daniel Synder is a complete tool and doesn't know much about football, but at least he's trying to put a winning product out there.

The guy who owns the Pittsburg Pirates. They are nothing but a minor league team. I heard the other day that they have had a losing season for 17 years in a row now and that is the worst of any pro team in any major sports league. Pityful with the new stadium that the Pa taxpayers had to help pay for.

I nominate Fred Wilpon of the Mets, he built a shrine to his Brooklyn Dodgers at Citifield. When the Met fans complained that there was no Met history or pictures at Citifield, he had the Met memoriabilia spread throughout the stadium. He promised changes to the squad and i'm still waiting for him to do something. The Mets are lacking a power hitting first baseman and outfielder, his payroll maybe the highest in the National League but it is not well spent. The players make horrendous baserunning and fielding mistakes and nothing was done to correct this. Fred please sell the team and count  your money !!! 

bob nutting - owner of the pgh pirates. How he is not on your list is amazing. But then again, that might show how bad he really is - even you forgot about him.

Peter Angelos is the only man I could conceive of who could so monumentally carry out such a decimation of an historically successful franchise for this length of time.  12 years of a losing record?  For the Orioles, home of Cal Ripkin, Brooks and Frank Robinson, Jim Palmer, Mark Belanger, and so many more hall of famers?  Numerous pennants and several World Series rings?  The O's finish at the bottom of the division every year.  We used to be at least ahead of Tampa Bay, which was an EXPANSION TEAM at the time of his ownership reign.  I am surprised that he hasn't hired bodyguards by now, given how our city feels about him. 

Go Ravens! As an avid O's fan for 20 years who generally ignored football, I am beginning to learn what is to me a new sport!  The man was given the most  beautiful stadium in the country, milked it for every dollar he could, and then ditched any responsibility for the people who made it all possible for him.  A curse on him forever!

You guys missed a Dolan. Larry Dolan, who owns the Cleveland Indians is in way over his head. Until he sells the team, the Indians will suck.

Has to be Al Davis. He has run a once great program into the ground

It has to be Sterling, noone has as much of a poor performance as the Clipper's owner.

Al Davis has won championsips.

Bill Ford Sr has won little and turned the Lions into an Acronym: Loosing Is Our Neverending Shame..

As bad as Bill Bidwill is, and he is definitely one of the worst, Al Davis has taken a once well-respected team and turned it into the laughing stock of the NFL. When opposing players say that facing the Raiders is little more than having a scrimmage, something is wrong - very wrong!

What about the Yorks? The free fall the niners took after the ownership change has to some knid of record.

I guess most hated is way different than worst. That being said, I'd write in the Steinbrenners

Al Davis. Two words: Marcus Allen

It has to be Bidwill, just based on the consistency of the ineptitude. Moved the team from Chicago and St Louis, Championship appearances 60 years apart with an incomparable record of futility in between. Say what you want about Davis, Ford, Brown, etc, but the record for utter futility has to belong to Bidwill.

Has to be Bidwill. Moved the team from Chicago to St Louis to Arizona, championship appearances 60 years apart, and a record of futility for the duration unmatched by anyone. You could make an argument for the Ford's, but the Bidwill's has owned their team longer. Brown is just cheap, but the have had their good times, and Davis has had success but is way past the glory days.

William Clay Ford..Detroit Lions. In a LANDSLIDE is the worst. NFL record 0-16 (0-19 on the road). How do you spell PLAYOALFS!!!! How do you explain Barry Sanders, who could have comfortably established all time record for rushing in the upcoming season, yet HE QUITS before season begins. There were no contract disputes, no outside personal issues. Frankly Barry and the dozens of other quality players have had dismal careers with the Lions. The only common thread in the last 40 years is WILLIAM CLAY FORD. The man is BAD CHEMISTRY!!!!

It has to be Ford. Al Davis has owned the raiders from the start and made the raider nation what it is today. Probably even more loyal than Cowboy fans. Al is old, yes he needs to go but you can't make him the worst owner. And unfortunately this is from a Bronco's fan.

Al Davis; .....Marcus Allen and Mike Shanahan, who he still owes money to... I'm really glad that Pittsburg has Nutting and we (Colorado Rockies) don't. I'm also glad that Al Davis refuses to leave... for much the same reason. As long as those guys are there then their franchises will be cancer.....

Wow, no mention of Bob Nutting, owner of the woeful Pittsburgh Pirates?? (And prior to him, Kevin McClatchy was just as bad, if not worse...) Sorry, sports fans, but 17 years of non-stop losing, with NO END IN SIGHT and NO REAL DESIRE for a winner, makes this buffoon the "king" of "worst owners"!

Although I am a Cowboys fan, I endure going to many Redskin games every year (too complicated to get into). I don't like the Redskins, but it sure would be nice to see a halfway decent game every now and again. Dan Snyder has wrenched the hearts out of the entire Redskins organization including the coaches, players, and fans. I have heard story after story of people dropping their season tickets that they spent (up to 20) years on a waiting list to get. $8 beers, even stopped up bathrooms at the stadium last year and all to see a team with a horrible quarterback and an even worse owner. So sad. Dan Snyder needs to give up his expensive toy.