Thanks @nathanmars for sharing this question. Personally my best is facebook I must say. Why facebook?? To me I find facebook having very many users compared to the rest of the apps and it is much more affordable compared to the rest. It takes less data and so if someone is a low income earner and can't afford data they would rather facebook. So it having a lot of people, I basically use it for advertising my personal stuff. Am a business lady that sells bags and I use facebook to advertise my products. Then the other reason why facebook is my best, it is much easier for one to find their old friends on facebook than it is on other social media platforms. Again facebook summarizes all the other activities of other apps for example you can post pictures and videos just like you tube and instagram. You can do a lot. Facebook also is a social media platform for everyone, what do I mean, it can be used by different age groups unlike most of the rest. I think I have said it all, to me facebook takes it all. Thanks for sharing once again.