Nothing about your story makes me think there is any reason why you cannot be admitted, but nothing stands out telling me why you should be admitted. All of the reasons why a top program would admit you are in the details of your work experience, personal experiences, personality, values and overall story.
For your undergraduate GPA, I recommend you read this case study of a candidate who addressed a sub 3.0 GPA and was accepted into Columbia and Chicago: http://www.stacyblackman.com/comprehens ... ies/case5/
We also provide Kellogg school specific tips here: http://www.stacyblackman.com/business-s ... n-kellogg/
Lastly, for your GMAT, remember that your score is self-reported on your application, so admissions teams will focus on your highest score.
Conrad and the Stacy Blackman
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Stacy Blackman | Stacy Blackman Consulting Inc | http://www.StacyBlackman.com | +1 323.934.3936
MBA blogger, US News and Author, The MBA Application Roadmap