One thing that hasn't been addressed here is that it sounds like this one recommender sent letters in for ALL of your schools. This means that if you go the third recommender route, this person needs to make sure they customize the recommendation letter to each school in addition to falling all over themselves recommending you. And - don't ever ask that person for a letter again. It could have been that s/he wasn't prepared enough to write you a steller rec (i.e. didn't know how enthusiastic s/he should be), but you just want to make sure that for future recommendation letter requests, the writers know that it's not just about answering the questions straightforward. It's about making their letters enhance and validate what you've already included in your application. Let us know if you end up pursuing the third rec!
Kaneisha
Harvard Business School MBA 2010, Harvard Kennedy School MPA 2010
Founder, The Art of Applying
Admissions Consulting for MBA, MPP, Joint Degrees, and Fellowships
https://theartofapplying.com
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