The Cheating Poll: Who's the Year's Worst?

Friday December 11, 2009 01:45 PM EST

Clockwise from top left: Jon Gosselin, David Letterman, John Edwards, Mark Sanford and Tiger Woods (center)

Startraks; REX USA; Wireimage; Getty;

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When it came to ending the decade with a bang, 2009 blessed us with a bumper crop of cads. Besides Tiger Woods and his full course of alleged mistresses, there was ...

Reality sleaze Jon Gosselin, who publicly caroused with a number of younger women right after his separation ...

David Letterman, whose affair with a woman who worked on his show led to blackmail ...

Former presidential candidate John Edwards, who cheated on his cancer-stricken wife with a campaign staffer, a union that reportedly resulted in a lovechild ...

And South Carolina Gov. Mark Sanford, who is alleged to have misappropriated public funds to visit his mistress in Argentina and whose wife plans to file for divorce.

Which cad takes the cake?

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