What's the best social media website?

In my social media experience there are definitely website that are geared towards business and also some that are geared towards personal use. I would have to say that Facebook is geared towards personal use. If i had to chose which social media network i would say is the best for business it would either be Instagram or Twitter. I say instagram because you can post pictures almost instantly and advertise your new products that are coming out. I would also say Twitter due to the fact that you can interact with and respond to customers very quickly and that makes for a lot of help and questions that need to be answered quickly, and also for other customers that may have had the same question.