Things are looking pretty good for you. You have everything that needs to be there, the GMAT the GPA, the work experience which gives you a shot at top programs. Just as good, I feel that with Ross and McCombs you have come up with reasonable strategy with some excellent Tier 2 schools that should see you get an offer at the end of your applications. So great job there too.
The three things that are not 100% clear and that make the difference between getting into say Harvard and McCombs are:
1. The breadth of your additional activities
2. The "uniqueness" you can build into your profile
3. The depth of your work experience and how your success compares to others
Because as you can imagine, the majority of HBS applicants have an excellent GMAT, good WE and a good GPA - so what are the things that take you BEYOND that???
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