The best programming language is the one you know best. Or the one you want to know best. Grouping you knowledge in a single language will make you more product

The best programming language is the one you know best. Or the one you want to know best. Grouping you knowledge in a single language will make you more productive with it, and allow future projects to be completed faster. Yes it ignores a certain amount of style, and crowd following. But you'll grow as a developer, and be more productive :)