If it is only for use on Facebook, I would go for option 4, then expand to option 2 (if it's quicker). If you plan to expand beyond Facebook, I would be tempt

If it is only for use on Facebook, I would go for option 4, then expand to option 2 (if it's quicker). If you plan to expand beyond Facebook, I would be tempted to start with option 1 and expand to 3.