>>24641796 (OP)
I speak a highly agglutinative language natively, and what it really excels at is poetry (due to having hundreds of ways of declining every word), even if it lacks the incredible breadth of jargon and latin vocabulary that English has. I don't think the information density is as important a factor as the lack of specialised terminology, which English always has by default; you end up mixing it in there, anyway.