Hi guys,
Just wanted to throw in my two cents of advice. I was lucky enough to get the award last year (in the ecology section). A few thoughts for you going through the process:
1. I used IM and BI headings and I think it was helpful. Reviewers read a ton of these. It's as much about making their life easy as anything else.
2. Write your personal statement as a story, but use IM and BI headings. Stories are memorable. A bunch of good-sounding sentences are not.
3. Obsessively study past winner essays, then write essays better than the ones you read. Google "Alex Lang NSF GRFP". His site is the best resource out there.
4. If you don't have excellent LORs, you are wasting your time. Harsh, but true. They should be from profs or scientists when possible. Mine were 3 profs.
5. If you don't have BI, you are wasting your time. You need to demonstrate that you are a leader and that you impact society. If you can't do that, you will not get the Excellents that you need in BI.
6. Your documents must be perfect. No mistakes. Lucid writing. Edit them about a million times. Bounce them off your advisor. Have your friend who is an English major read them. Twice.
7. You must sell yourself. Everyone who applies is smart and ambitious. You must have a story that stands out. Make it a package. This is why the LORs are so important. You must stand out as a package, not just have a good idea.
8. I'd suggest writing a longer document, then cutting it down to the best. My original research proposal was 4 pages. It was nearly impossible to get it to 2, but when I did, it was all the good stuff.
9. I probably put 80-100 hours into my application, the majority on the research proposal (reading papers and writing).
Good luck to all! Go Google Alex Lang now!