Spanish has always seemed like a much simpler language than English to me and it's interesting to see this data sort of confirm that.

I feel like the Spanish speakers use way less vocabulary and slang than English speakers. I expect that spoken Spanish is a much more efficient language than spoken English at efficiently conveying simple communications, but that English is a much more efficient language than Spanish at conveying complex communications.

If I had to teach an Alien race to communicate with humans, I'd teach them Spanish.

If I had to teach an Alien race how to write good novels, I'd teach them English.