Which site you use more?
It depends upon the mood of the user. Facebook is more used if you wanna contact the closest people on your circle easily such as school friends, parents and relatives but facebook loads slowly because of the number of users worldwide using it. Twitter is more used if you wanna know the newest updates about your celebrities and do some stanning (stalk + fan). I don’t have an instagram but I guess it works out like a photo gallery with captions. Wordy posts aren’t that much appreciated on insta except for comments of course