@Drew and @EvBerkel, FWIW, I did not get the same impression that you did, I think they both did a good display in this interview, they both know that they both know that they are both technological heavyweights. (I've been a fan of Anders H. since Delphi 1, so I'm not anti-Anders!) Anders seems extremely relaxed in these kinds of discussions, I guess it's both his nature and his massive experience with interviews.
Thanks for this amazing interview/discussion! Personally I believe TypeScript has the better chance of (huge) success market wise, although I'd really prefer Dart to "win" because it has the best technological foundation.