Some love him, some loathe him, but no one can say that Bush isn't as strong a leader as granite. Of all the truly great presidents, Washington is the only one who never polarized people in this way.
Lincoln was elected by a slim margin and absolutely hated by many people in the North and the South. He was ridiculed as a loser, an uncivilized rube, and sometimes even as a sub-human ape. Now he is considered almost a mortal god.
FDR so alienated conservative "plutocrats" that they wouldn't even say his name, simply calling him "that man".
Theodore Roosevelt, who became a folk hero long before his death, also attracted scorn from wealthy businessmen, who saw Roosevelt's "big stick" descend upon their corporate empires.
And I don't even need to tell you about Ronald Reagan.
I believe that the full extent of Bush's actions have yet to become apparent. Major crises of history like the one we face now are not quickly resolved. The Civil War dragged on for four long, bloody, horrific years, and its scars persist to this day in the south. Roosevelt needed 8 years and a kick in the pants from the Japanese to drag us out of the Depression, and then spent another four years at war with three powerful empires controlled by ruthless madmen. The other Roosevelt didn't really start "trustbusting" until his second term. "Reaganomics" didn't really bear fruit untill late in the Reagan administration, and produced a huge economic boom.
It is quite probable, that years later, we will look back on the presidency of "Shrub" and place him in the presidential Valhalla occupied by Lincoln, the Roosevelts, and Washington. Time will tell.