Hi there,
Thanks for posting. You have a lot of positives to your profile, including GMAT and grades and experience, but already having an MBA is a large challenge. Your goal would be to convince the school/s that your prior degree was NOT sufficient, and that you do need this additional degree.... that is a tough task, but that is what it would take. However even more so at the very top programs, it is SO competitive that it is tough to convince the adcomm that they should accept you who has an MBA over someone who does not and makes a case for needing it. So you should know it is a long shot, and consider if there are other alternative plans you may want to consider as well. Good luck on your decisions!