Deferred applicants vs. other RD's: an edge?

<p>A friend just got deferred at Princeton. She plans (naturally) to write letters, submit additional whatever, write letters to the adcom, etc. I've already submitted my RD app. to Princeton I did all that was allowed (including what was allowed as Optional). It seems that ED'ers get 2 chances to present themselves -- the full app with all the supplements & optionals, + another shot between the 2 decision days. Would this give deferrals an edge over one-shot RD'ers? What do you think?</p>