What does an AI-generated proposal look like vs a hand-written one?

Visually identical — same template, same branding — and after editing the prose differs by less than 15% line-for-line. The honest summary: AI gets you to a 7/10 in 30 seconds, a human edit gets it to 9/10 in 25 minutes; writing from scratch hits 8/10 in 3 hours and skips on Tuesdays.