Ultimately these things are a matter of opinion, but as a developer who knows C#, I'm not sure I'd bother to learn it again if I had to completely reboot my kno

Ultimately these things are a matter of opinion, but as a developer who knows C#, I'm not sure I'd bother to learn it again if I had to completely reboot my knowledge. I can understand the perspective of being pragmatic with regards to the job market, but while there are an abundance of C# jobs available, offers tend to be lower unless you're specialized in Sharepoint or very senior. Culture can be a challenge in those shops as well. "Professionally" I've worked the most with Python, JavaScript, PHP, and C#. Of those, I'd only keep JS and Python. I'd swap out C# and PHP for Clojure and C in a heartbeat. Probably not the best for job prospects but definitely the most fun.