I would definitely not like it. I am more in favour of a secular nationalist government in Pakistan. However, there are some points I would like to make.
Firstly, when any leader comes, when any party comes to power, you want to see the work they do, the ideology is least important. For example, I don't like the MQM or their ideology, but I have to admit they have done some good work recently in Karachi (and some bad).
Secondly, I don't blame Zia as much for Islamization in Pakistan as I do Bhutto. I believe that it was Bhutto who started the trend and, by the time Bhutto left, the trend would have been difficult to stop for any leader, whether a Zia-type or an Ayub Khan-type.
Thirdly, with regards to getting rid of such fanaticism, several steps. One, building more schools and improving the schools Pakistan already has and making sure they are functioning properly. In my view, Imran's college is a much greater contribution to Pakistan than his hopital, because schools nurture minds, they give the youth a base to think from, and that base is permanent. Secondly, US drone attacks must stop, that is radicalizing society faster than anything, and I cannot blame those who are turning to the militants. After that, an Ayub Khan-style government, I think, would do to reign in the mullahs by any method.
Lastly, I would not want the picture you painted to occur, but, something I would be even more against, is America constantly invading Pakistan and killing civilians with impunity.