Wow, there is a like a million tools in use here. Before I clicked the link I was expecting the tool set to be extremely minimal and focused, e.g. HTML+CSS+javascript/node.js. I currently have a bunch of projects using PHP+javascript+HTML+CSS and I am seriously considering dropping PHP and focusing more on javascript, and thus using node.js instead of PHP, so I no longer have to keep up to date with PHP. Anyway, great you can manage it all and that it's working for you.
All JS is the place to be. TypeScript is an amazing dev experience, NodeJS is decently performant, and then it's all portable as hell thanks to the web.
My feeling is that they are comparable in a proverbial "straight line" computational sense, but nodeJS' non-blocking event loop / IO makes it superior for handling a webserver's request / event model under higher concurrent user counts