For high value applications where the real money is, security and a trusted track record is more important than speed and scalability.
For games and social interaction Hive is the best but I wouldn't use it for very large $ after what happened with Yuchen Sun. dPOS is vulnerable in a way that large scale POW is not.
Ethereum's move to dPOS has been "soon" for as long as SMTs have been soon on Steem/Hive.