WRITERS & AUTHORS - TELL ME WHAT TO DO!

I'm a first time author - can I even say that? - and I'm ready to get my manuscript out of Google Drive and into a writing platform that is more long-form-friendly. I've narrowed it down to 2: Ginko and Scrivener. Now I need your help! What do you use and why?
  1. Be a dear and make this decision for me?
    Writing a book is daunting! Won't you please make this decision for me? Pretty please tag any authors or writers you know. I know I sound desperate. I AM DESPERATE!
  2. Ginko?
  3. or, Scrivener?
  4. Help!