I think libraries (API's & frameworks) matter more than languages in a good many cases. Most mature dynamic languages are flexible enough to give you plenty of ways to express things such that libraries are the difference makers. (And they all have their own warts.) Rank and file coders are mostly just "library gluers" anyhow, for good or bad. A "better" language won't change that aspect much.
Thus, with PHP versus Python battles, for example, looking at libraries matters more. (PHP tends to be easier to set up for web-oriented projects. Something to consider for small or often-changing teams.)
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I think libraries (API's & frameworks) matter more than languages in a good many cases. Most mature dynamic languages are flexible enough to give you plenty of ways to express things such that libraries are the difference makers. (And they all have their own warts.) Rank and file coders are mostly just "library gluers" anyhow, for good or bad. A "better" language won't change that aspect much.
Thus, with PHP versus Python battles, for example, looking at libraries matters more. (PHP tends to be easier to set up for web-oriented projects. Something to consider for small or often-changing teams.)