[Callum65]

It is hard to say which one I like because both Facebook and Twitter are most important social networks in SEO and SMO, so you don't prefer one on other because both have their own worth. I like both Facebook and Twitter.

[bedfordseo]

I like the Facebook. According to Facebook, people who click the Facebook Like button are "more engaged, active and connected than the average Facebook user." Facebook claims the average "Liker" has 2.4 times the amount of friends than that of a typical user and he or she is also more interested in exploring content they discover on Facebook. Likers click on 5.3x more links to external sites than the typical user, says Facebook.

[JimyBenvolio]

I have profile on both of these social networks, but I spend my time for social sharing on facebook more than twitter as it has user friendly layout and we can easily interact with each and every features of facebook. In short it is better than twitter.

[blacktransporter]

If I have to make selection between facebook and twitter than I give my vote for Facebook. Facebook is the world's first best popular social networking site.