[Layton13]

Super Sentai is not more mature than Power Rangers.

It occasionally dips into darker material, sure, but for the majority of its run time, Sentai is less mature than the average PR show. Even shows like Shinkenger, which generally knows as a serious Sentai have parts of themselves that you rarely see in PR because of how goofy, silly and childish they are.

In general, PR has a far more consistent tone, which really helps make it a cohesive whole, something Sentai struggles a lot with.