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I wish he'd touched on testability. I chose Angular for my project because it is dependency injected by default and includes mocks for common tasks. This makes is possible to do the majority of my UI testing in unit testing which is much faster and easier than using something like Selenium.

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I really can't emphasize that enough. Angular's test support is by far the best any MV* framework I've seen has, at the moment. With dependency injection being the foundation of the framework, AngularJS has a major benefit over most competing products in this area.

Unit testing your viewmodels/scopes is great, but it's a totally different kind of activity to end-to-end testing via browser automation, isn't it? Unit testing will help with design, but end-to-end tests will catch an entirely different (and bigger) set of bugs. So don't you need both?

Most frameworks it is not possible to do proper unit test. With Angular, you can actually do it. As the controller is totally separate from the view (html/dom).

OK. I was just taking it for granted that it was easy, because the same is true in Knockout (viewmodels are entirely independent of views, and so are trivial to unit test with QUnit or whatever else).

Pretty much only Angular and KnockOut and maybe 1 other js framework can do real unit test

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