Both are good G+ and FB like for SEO because traffic matters no matter that comes from where. But facebook has many user and less educated also that easily increase site traffic.
Facebook is more popular social network than G+ . I n my opinion facebook is more useful for generating traffic for the website.
I've managed Facebook pages and I'm not really happy with the way FB is milking businesses in terms of promotional advertising. I'm hoping Google+ will turn out better.
Each of them is good if you know how to use them, Google + being product of google may help you more.
yea in our mastermind, we make sure we share each other's content on Google+ to get it ranked faster.... Google+ also makes getting organic traffic better because it will put your picture next to your listings in Google.. That's HUGE for increasing CTR..
For Seo point of view google plus is given preference as compared to facebook by google search engine.
Just thought I'd add my 2 cents here.. I went to a seminar from a Google representative yesterday, talking about all things Google (obviously..), and he mentioned that having your site +1'd or shared etc through Google+ can affect your ranking, as part of one of the 200+ things that do affect it, however Facebook and Twitter do not.. Nick
Google+ is better than Facebook for SEO. Because Google+ can provide more quality traffic than Facebook.