So, my question is this - Is it bad to have information repeated accross your application like this? Does it make it look like you have a limited number of accomplishments and therefore need to mention them over and over again? If it is bad, how do you fix it?
IMHO, it's not bad at all to mention the brightest moments of your career in the resume (even though you have already described some of them in your essays). If you still feel uneasy with these repeatitions, just thoroughly rephrase the lines ("managed the project on acquisition of the international company" => "led a group of 5 analysts and 3 lawyers to negotiate and close the deal regarding $500 mln purchase of the global healthcare business") so that your essay points will not automatically pop up in the adcom minds
It seems like I would want to list my biggest work and EC accomplishments on my resume right? But then I would also want to write about my biggest accomplishments in my essays too. Maybe its ok because resume/data forms are brief summaries and essays are where you expand (on the same events/accomplishments, etc)? Oh and btw, I feel like I should mention that there are of course other points/accomplishments, etc that are mentioned on my resume that will NOT be the basis of an entire essay (for these the resume will be the only place on my application that these accomplishments appear - unless my reccomenders talk about a couple of them).
Sure, add your EC to the Additional Information section of the resume. Your interviews can be blind, so that the only source of info the interviewers will have will be your resume. Even if your recommenders will talk about something and it reflects your valuable experience, mention it in the resume. But DO NOt repeat the phrases used by the recommenders.
One essential thing about the resumes is that your points there should be short and sweet but at the same time they should show your quantifiable leadership and management potential (you "led", "managed", "coordinated the work" of "5 auditors", "400 employees", "3 assistants" etc.)