ERGO

The devs: 1) Worked on nxt 2) Developed for Cardano 3) Made Scorex which waves used.
Has it's own contract language (ergoscript), not susceptible to the DAO hack because non Turing features.
Miner consensus allows miners to modify certain parameters, such as block size and storage fee as the network grows.
Miners are also able to soft-fork Ergo with changes suggested by the development team.
ASIC and pool resistant, custom consensus.
NiPoPow proofs allow nodes to verify a transaction without having to sync or connect to the whole blockchain, think running on a smartphone.

Charles, lead of Cardano, has spoken highly of Ergo. https://twitter.com/IOHK_Charles/status/944941679458492417?s=19

https://bitcointalk.org/index.php?topic=5150971.0