Who will win is clear to me. Usually the one who first comes with a concept wins, see FB, Twitter, Ebay, etc... there where a million clones but none succeeded. The only one who will succeed is the one who really has disruptive technology, like steemit does. And in their case they are yet the first. There will also be many more features build into steemit in the future my guess, making it more a social platform... have a bit more believe!