Both of them are part of the Bilderberg group. Google dropped
"don't be evil" in 2009. Google (and also At&t) has also been caught stealing personal information while collecting data on wifi networks with their street view cars, which allows them to track people who are using their cellphones. You better believe that any information you put on either facebook or google+ is being saved somewhere. As a matter of fact, anything you put on facebook is also being saved by google in their total internet archives so maybe it is best to switch to google+ so then your information will only be saved by one of them. (thats sarcastic by the way)
I repeat, its all the same.