Every eight years, a couple hundred president scholars are asked to rank the presidents on various scales, including communication, honesty, intelligence, foreign policy achievements, economic achievements, etc.

The 2010 assessment is out — you can read the PDF here – but the "headline" results are:

• In overall rankings, Obama comes in at 15th
• In overall rankings, Bush 44 dropped from 23rd (in 2002) to 39th today
• Bush 44 also ranked next to last in communication ability and intelligence (Andrew Johnson was ranked last in both categories)

Here's the top ten's over the life of the survey:

…and the 2010 top two and the bottom two for each category:

Clinton, for what it's worth, ranked 13th this year — one ahead of "Bloody Bloody" (Andrew Jackson) and two ahead of Obama.