Although Facebook is the defacto "social media god" right now, I believe that in time Google+ will take over.
It's like the Android vs. iPhone thing, iPhone are for the fadsters, it's popular, but very restricting, having everything HAVING to go through iTunes and all. Facebook is not very private and you as the end-user don't have much control. However, Google+ gives you much more control and freedom. You get to control who sees what and what you see yourself...pretty much with the same benefits and functionality as FB.
Thinking people recognize this now and in time more people will come to recognize this as well. I think so at least.