Vouching for "whatever you are most familiar with". Beyond that, there is also the practice. the more time you spend with a stack, the faster you get. The more

Vouching for "whatever you are most familiar with". Beyond that, there is also the practice. the more time you spend with a stack, the faster you get. The more fluent you are. The better you understand the inner workings, nuances and customizations. My personal stack is Django but it could be anything. I am working on my 5th or 6th web app and my understanding and confidence is lightyears ahead of where I was during the first app.