Great question! Having multiple nominations increases not only appointment chances but also makes it easier for USNA admissions. Representatives nominate up to ten students (sometimes they rank, sometimes they list a preferred one, it varies by rep) but only one of those nominees are selected...
Great question! I attended SLE last year, and at the closing ceremony they recognized several of the candidates. The awards included highest scores for the CFA, best leadership, performance in the workshops, and overall abilities. Regarding your question about evaluation throughout the week...