BobG's comments reflect somewhat my views as does Gokul's comments.
I find both Bush and Clinton to be morally impaired and weak of character, especially when it comes to important matters.
Both Bush and Clinton have failed when it comes to honesty, but Bush is by far the worse of the two.
Both Bush and Clinton avoided military service in Vietnam. With family connections, Bush was allowed to sign up in the Air National Guard, while Clinton (like Cheney, Gingrich and others) used educational deferments - yet those opposed to Clinton emphasize Clinton's avoidance of the draft while overlooking those of others.
Did Cheney Dodge The Draft Five Times?
Clinton has a great intellectual capacity, unlike Bush, but he wasted much of it. Clinton's foreign policy was appalling and his domestic policy was not much better. Bush's foreign policy is a disaster - and continues in steep decline - and the domestic policy is poor.
The entire point of a representative system is that you elect someone who will make his/her own decisions.
This is somewhat true, however it's more the case that the political representatives should think and decide matters independently, and not under the influence of personal interest or interests of others. The representative must be honest and righteous (i.e. must have integrity), otherwise the system fails. A political representative, e.g. Duke Cunningham, could make his (or her) own decision to act illegally, but then the representative system has failed.
It's been a while since I checked the score, but I'd be surprised if Clinton's admin doesn't still hold the record for resignations due to incompetence. Bush's worst (Brown) was far worse than any of Clinton's based on severity of the problem, but Clinton played the incompetence lottery with much higher-level appointees.
This would make an interesting comparison, but the incompetence in the Bush administration goes all the way to the top - i.e. Bush himself. Bush's SecDef, Rumsfeld, was certainly incompetent. Rice (National Security and State) has been viewed as incompetent.
As for Bush, it appears to me that Bush does for personal reasons, as much as Clinton did. For Clinton, the motivation might have been winning the next election, but for Bush, it seems to be about power and control over the lives of other people and that has lead to an imperious foreign policy. While Bush may claim he is acting for the 'good of the country', it appears to me that Bush is incapable of understanding what is 'good for the country'.
In short, if Clinton was bad, Bush is worse.