These days 2 for facebook to the 8 for steemit.
The good thing about facebook: Everyone and their grandmother is on it, certainly most of my friends and family. Here on steemit, only the steemians I've met. Which is also the good thing. Steemit different, it makes you feel special... ;-) So facebook is established, steemit is new and exciting. Plus, I've always missed the blogging option on facebook, but I guess that platform was never really intended for that.
Room for improvement on steemit: One facbook thing I've been missing here is how you can add a personal touch when you share content. Also, it would be great if you could group and rearrange your posts, and editing them after the first week would also be nice.