Which leader in Pak hasnt?
Other leaders came to the system through the legal procedures, elections. The nation didn't choose Musharraf. So, you can imagine the lack of support for Musharraf.
Marshall Law is not that bad; however, in comparable to democratic leaders, they appear to be effective, that being said there is nothing wrong with democratic system, but democratic leaders, chosen by nation, tend to disappoint the nation - given the history of Pakistani politics.
At the end, the nation is not happy with Musharraf is due to his governing policies, including his soft-corner for MQM and others; brought instability in Karachi, that being said there were a lot of factors involved. Nevertheless, the nation never support the ones that is forced on them.