I'd encourage not contributing to "girlswhocode", I believe gender-segregated services do nothing but inflame any divide that exists between them as it is.
I'm using LAMoPy - Linux, Apache, Mongo, Python (flask)
I don't buy into the whole Node.js thing, I much prefer the stability and maturity of apache. Mongo just because it's easy to use with python, and python because I love it <3