Komodo looks very good. (need to check Engima).
I was glancing through credits technical doc and audits. Komodo, EOS folks, Filecoin all have something working. ie, proof concepts - 2 small proof of concepts namely Graphene and IPFS for example. So anyone claiming to be faster and better should either bring features like atomic swap, privacy etc and show their mettle.
BTW I think there is an effort to add atomic swaps to bitshares and is already available on a Graphene fork : https://steemit.com/bitshares/@ash/bitshares-scorum-a-new-graphene-fork-to-gift-acct-to-bts
In a nutshell, we are back to square one with our eternal love of Graphene (Bitshres, STEEM, GOLOS ... )
RE: Why EOS will be competing with Enigma and Komodo for marketshare more than any other Smart Contract Platform - Analysis on competition, monopoly, technology and "Purple Cow"