Paul Flowers has the strongest resume' of any candidate I've seen in a long, long time. Both academically (master's in environmental engineering, law degree from UT with high honors), and professionally (successful careers in law and engineering and a well-regarded stint in Bredesen's administration), she's got the Right Stuff.

Plus, she's a Good Ol' Girl in the best sense of the term (worked at the Dairy Queen in Monterey to put herself through undergrad, married with three kids).
And I can personally attest, having watched her represent the folks who were swindled by the former owner of the Halls Memory Gardens, that she's a relentless, canny streetfighter. And she didn't charge them a penny.
I got no problems with smart, honorable, diligent and courageous.
Of course, she's not a reformed drug dealer/user and has probably never lived in a religious commune, so her chances are probably slim.