Facebook is huge on authentic content, but what does that mean?
If you're interested in getting maxium exposure on your Facebook content, you want as many people as possible to see it. The best way to do that is an authentic, non-scheduled, non-3rd party (Twitter, Google Plus) post. Your content get's more 'weight' from the Facebook EdgeRank engine if you post directly using the Facebook site or the official app on your mobile device.
Here's an interesting article that talks about this in more detail: Using 3rd Party API with Facebook.