Ask HN: What's the best platform for a web apps MVP?

Hello all, I'm about to write a MVP for a web apps which I have all the ideas and design. Coming from an infrastructure background, I've personally developed few micro-services in Sinatra and Rails, but want to learn about NodeJS and Django. I haven't come to a conclusion on which platform framework to use and each has its own pros/cons. I have few things that might we are looking for : - handle very well in real-time traffic - starts as a web app, but eventually most traffic will be coming from mobile apps - build RESTful API at beginning - deals lots of location data - using MySQL - provide some analytics Any recommendations? Thanks in advanced.