He was horrible, maybe the worst ever, and he'll be remembered that way, often for the wrong reasons.
What was good about him? The trillions he added to the deficit? The abandonment of the free market that aided this collapse? The hundreds of billions wasted on stimulus? 2 wars with no clear objectives? The infringement on civil liberties through the PATRIOT Act? The undermining of the constitution as he attempted to suspend habeus corpus?
Honestly in what area was he a strong president? Both the economy and foreign policy were disasters on his watch.