Well... let's see...
which one DOESN'T ask for my phone number before letting me in?
Google+ seems OK, but it's mainly best for Web-Cam users, I don't have a webcam. It's great because it's hard to get away with more than one account like you can with Facebook (I have 2) because you only have one face. LOL.
Facebook is good too, you're able to talk with friends from around the world, it auto-translates speech with some countries to another. But the problem is that it is text-based. One person can easily have 6 accounts and it would be difficult to tell which is the main and which are fakes. It is a Seth Pool for cyberbullying and hard to remove, everything is in ink on that site. As opposed to Google+'s webcam interaction with the "What happens in Vegas, stays in Vegas." rule.
My hand raises to Google+
It is simple, more organized, and less of a hassle to put up with.
Unless you can handle a kick to the balls 46 times, join G+
You can hang yourself with that 70's era belt you own after realizing that once your friend said that thing about you that it's too late and EVERYONE has seen it and are no longer your friends.
This is your wake-up call