I was going to say Britney Spears but she's actually been falling for some time now.

Without a doubt...Michael Vick.

Vick didn't have that far to fall in the first place

Well, if you mean as far as what kind of person he is I would tend to agree, but he went from one of the two or three most popular football players in the world, millions in endorsements and millions of fans to being almost universally reviled by most of the world (save about 40% of professional sports and a few other mostly ignorant people). I'd call that a fall. He lost it all, and will be in prison for the next year and a half or so.

How 'bout Alberto Gonzales, Sen. Larry Craig, the entire Spears family, and poor Bart Peterson with that property tax/election fiasco...

Ooooh, what about Don Imus? Him and his friend Free Speech fell from something.

Lindsey Lohan..but you saw this train wreck coming too!

To fall from Grace, they have to be a respected individual first, right? That makes it difficult since so many "celebrities" and politicians haven't been very good role models in the first place...

Congress.

For 2007, has to be Lohan.

Jamie Lynn Spears. Formerly known as "the good one". Poor thing.

It has to be a Spears ... I'm leaning towards Britney, who is so bad a parent that she's losing her kids to Kevin Federline. KEVIN FEDERLINE. My favorite part was when she shaved her head.

Mike Vick mos def fell the furthest. Not only is he in the clink, but dude lost alot of money, made and potential. Good job Mr. Vick! From highest paid NFL player to punchline. Maybe you'll make a future edition of Trival Pursuit, or a VH1 Where Are They Now.

here is a pretty extensive list:

the 50 Most Loathsome People in America, 2007 http://buffalobeast.com/122/50mostloathsome2007.html (nsfw - language)