Historians rank George W. as the fifth worst President of all time -- bumping President Fillmore from the bottom five. In the intelligence category Bush the lesser was second from the bottom (only Harding was dumber).
http://www.siena.edu/uploadedfiles/...nt_research/Presidents Release_2010_final.pdf
http://www.siena.edu/uploadedfiles/...nt_research/Presidents Release_2010_final.pdf