I voted for option 3. However, Saddam should have been sorted out during the gulf war. We had the chance to chop his ass into tiny pieces right then. Problem sorted. Because that route wasn't taken then we have the situation now whereby either action or inaction is unacceptable. Plus the additional suffering caused to the people of Iraq by Saddam over the intervening period since the gulf war and the almost immediate butchering of the Kurds. We really left them with their flies open.
All too late and all too frantic. This is not going to end well for anyone.