I like SPDY and I don't like Dart VM; I think that reflects the broader consensus as well. Dart VM just isn't better enough to justify switching the entire web to it. SPDY is.
Personally I wouldn't support any proposal for a new web VM unless it could achieve no-compromise full-speed execution of transpiled C/C++ code in the web sandbox. That's the #1 most important feature and #2 isn't even close.
Personally I wouldn't support any proposal for a new web VM unless it could achieve no-compromise full-speed execution of transpiled C/C++ code in the web sandbox. That's the #1 most important feature and #2 isn't even close.