I think that the LINQ integration with EF is nice.. but EF in and of itself isn't all that great imho... Most of what it does is generate types to correspond to your database tables.
When you use a language with real variable types, it's less of an issue... If you really want it, you could shoehorn generators and other db platforms into the hyena[1] package.
In general, I've found that using databases tend to be much more straight forward under node, and that using ORM tools are less necessary.
When you use dynamic, you lose the biggest advantage of C# in general, intellisense in VS. Don't get me wrong, it can be great to use dynamic at times... I just feel you're losing the advantage that VS/C# give you when you do, so you may as well be using something else. (I like node.js)
When you use a language with real variable types, it's less of an issue... If you really want it, you could shoehorn generators and other db platforms into the hyena[1] package.
In general, I've found that using databases tend to be much more straight forward under node, and that using ORM tools are less necessary.
[1] https://www.npmjs.org/package/hyena