I think the one that I use the most is most probably youtube, I have been working at the beginning of the year with my channel were I was really active for almost half a year and I posted over one hundred and ten videos in that period. Now I am using youtube daily to check for some content that I am subscribed to, even though I am trying not to invest my energy everywhere and I am very picky. I think I will choose youtube, since my Instagram account is not more active since one year ago and I haven t been posting for more than a year. And for facebook I have someone who manages my business facebook page and profile, of course I will answer if it is something personal in the messages but that s all my facebook activity lowered a lot in the last year, I think I have used facebook maybe just for several competitions I have joined, nothing more. Also LinkedIN it is administrated by my manager regarding social media, where we post weekly some content.
So my choice will be Youtube!