Facebook Twitter Pinterest Google+ Linkedin Reddit Classified Ads UK | Place Free Ads | Free local classified ads | freelly.co.uk
It depends. Google+ is preferred in the tech word over Facebook, Twitter is more used in the US than in Europe... Pinterest is preferred in a more artistic environment (that's my opinion anyway)... so you can't generally assess them. My personal top is G+, Twitter, Facebook.
Facebook -- Good for engaging in conversations with peronal friends who might later have an inerest in a page, group or cause. Twitter -- Excellent for reaching mass amounts of people at once. Pinterest -- Awesome visual appeal via images and timeline quotes that are easily passed on to Facebook and other sites. ***I added one more ---->>>Instagram -- The mobile equivalent to Pinterest. Google+ -- Excellent for reaching targeted groups of people more easily and conveniently. Linkedin -- More tailored to business professionals and a great place to find a high-paying job. Reddit -- Don't use as much as I used to; just for social sharing of links and to keep up with the news.
I vote for "Facebook" as it the most popular social media site in India and world. One can easily disseminate about his business through it and within very short time period.