I liked that site, and listened to some of them. I think I probably sound most like Ohio Six...but that chick can't read.
It didn't seem to hit the extremes...such as my boyfriend from a thousand years ago who hailed from a farm in the middle of nowhere in Minnesota. I didn't find anything that had the accent those people have. And Cajun wasn't represented in Louisiana (or I didn't hear that one) because when I visited Cajun country I could barely understand what people were saying.
Then again, we never sound like we think we sound. When I hear my voice on a recording I think "nuh-uh, that's not how I sound."
Anyway, mon has heard me talk in real life, maybe she can chime in...I always thought I had a definite "midwest twang" but have been told my accent is pretty neutral.
I've never completely shaken my 1980s Valley Girl leanings, though. Totally.