The problem I see with the whole Rebel movement in Syria is that they are totally not a unified group. They don't have an "agenda" or a "wish list" of how they want things to change. They don't have a plan. They don't have a unified message or a stance, they are not organized, etc... In the start I believe the rebels consisted mainly of Syrian citizens who were against the Assad government. But by now they have been joined by members of Al Qaeda and other militant Islamist groups.
While I really hate what the Assad government is doing to its own people, what I would REALLY hate to see is the Rebel movement winning and then all these Islamist nutjobs getting their hands on the Syrian chemical and bio weapons stockpile. It's pretty obvious that groups such as Al Qaeda only join the battle because they hope to take the government's place when the battle is over and use the fragility of the nation as a means to install a new stronghold for themselves. Look at Sudan, look at Yemen. I think this is also why the U.S. does not want to get involved in actively arming the Rebels, because they know they'd be arming terrorist groups as well.
I fear this war is going to go on for a while, probably a decade. And I don't think it's going to end well for either side. And especially not for civilians trying to live there in peace.