The potential for a de facto coalition between her and the current President offered some hope for stability and progress for Pakistan and for stemming the Islamist insurgency. She could have brought some democratic legitimacy and he could have helped control the military. We'll never know. That she had courage is indisputable and no small characteristic. However, there is a fine line between courage and recklessness, making her approach to campaigning irresponsible vis a vis the millions who supported her and the people who have suffered and died in the aftermath of her assassination.
N.B. Another link to check out regarding her short-sighted, though reluctant, cooperation with Pakistan's ISI to help arm the Taliban: http://www.thestar.com/columnists/article/290372