Google plus is best and its seo booster also. facebook had limit on friend requests and message sending
I will go for Facebook. Facebook is most popular and it can serve best the purpose of a social networking site.
As soon as I submitted my vote, I know the result will show me that Facebook has the most votes... and yes, as of today... Facebook remains the most used social networking site.....
Google +, Facebook,Twitter, Linkedin quality Social networking sites promote website get effective traffic
Indeed there are a lot of websites for social networking but the best is Facebook why? because it's easy to use, great AJAX functionality and a lot of users to advertise your services too. Basically it's a great advertising platform.