Forget all the talk about democracy and a revolt against tyranny, the choice here isn't being a tyrant and a populist movement, it's which species of Islamists will come out on top. On one side is Iran and on the other are the Gulf States and the Muslim Brotherhood.
Syria is not an Islamist regime, except to the extent which all Muslims countries incorporate Islamic law into their legal and social systems, but it is the pawn of Iran, a Shiite Islamist state. On the other side are Saudi Arabia and the rest of the Gulfies, Turkey and the Sunni Islamist Muslim Brotherhood.