On the flip side, when I was on the interview for a small startup a while back, I started learning to distrust resumes that were too good. I eventually figured out that it's because they used a resume preparation service. They weren't lying about anything, but it's amazing how different the same experience can sound. (Ok, quite a few were telling some white lies, but the strength of the resumes did not depend on lying.)

I'd say that the bottom 20% and the top 20% of resumes (that made it past the HR screen) were disappointing during the interview. The best people usually had decent but somewhat awkward or unclear resumes.