As for the contention that what took place in Libya was a "coup" .. it is a proposition breathtaking in it's absurdity. In Libya a tyrant who had been in power for decades was overthrown in a popular uprising. That's the fact of the matter.
Furthermore, there was clearly no plan for an intervention and everything was done on the wing. The US stopped providing any combat support in a short space of time ... leaving the running to the Brits and French who then ran out of bombs. Masterplan all in all.
Apart from two small places (Sirte and Bani Walid) the only people fighting for Gaddafi were the army.
The "mass movement" carrying the day in Syria is a rag tag bunch of militias that foreign correspondents conveniently label the Free Syria Army. Not very different to the militias who defeated Gaddafi. I'm not sure what the mass movement you are keen on is doing. Who is leading it?
They are two totally different countries. Different history, culture, political history. What the outcomes will be is not dependent on how long the fighting took place. There are many other factors. There has traditionally been a fairly strong "left" in Syria, for example whereas there has been none in Libya.
Personally, I'm not happy making any short term predictions for either place .. but fire away yourself...