How would you rank the presidents from 1933-Now?

The historic rankings based on various large scale surveys have almost universally put W at the bottom, and his father somewhat higher. FDR is considered one of the top 3 president overall (and the leader by far in the 1933-now group). Truman is rated next. I personally think Kennedy was over-rated, Carter under-rated, and it's too soon to rate Obama, but other than that I'd pretty much agree with the Siena 2010 poll. Clinton was the best modern president.