Who is the fastest? Node.js, Bun.js, or Deno.js

The results are so close it seems like they'd be within the error bars.

I suspect since they use V8 or something alike underneath the final results won't change much.

What changes in between them are at DX, not at the deployed product. If you really need something to make best use of resources (aka. performance), you should look further to other languages, like rust.