The real sad truth is, based on their records, both Bush and Obama are dismal failures as leaders of a great nation. In the areas of foreign policy (including foreign wars), domestic economic policy, social policies, and ability to be manage a large government organization, all have fallen off a cliff since Clinton.
Yes, each has their excuses for failure. And yes, Bush was in office longer, so he had a long time to screw things up.
But the man who put us in a hole, is just as bad as the man who has no prospect of getting us out. For Republicans and Democrats to point fingers and lay blame each other just cannot hide the truth.
We need a leader who can say, "all Americans must put his/her shoulder to the wheel and be willing to work harder, think harder, sacrifice more, and be less selfish." We need a leader who can earn our trust and lead us out of this abysmal mess; and political leaders have been in short supply in the 21st century.