I remember you mentioned before that you are a low GPA applicant. If I recall you said you had around a 3.2 gpa, or maybe a little lower. For the schools that you applied to, that GPA is a jagged pill for the AdComs to swallow.
For reference, US News publishes the middle 80% of GPA's of accepted applicants:
Harvard - not published but probably similar to Stanford
Stanford - 3.36 - 3.97
Wharton - 3.18 - 3.87
Kellogg - 3.19 - 3.88
Berkley - 3.39 - 3.90
So as you can see, your GPA is generally in the bottom 10% of those accepted for these schools. It isn't impossible to get in, but you also have to keep in mind that the lower echelons are generally reserved for princelings and under represented minorities (if you are one of those, well then that changes things). Otherwise, a really awesome story and perfect execution on the rest of your application is your best hope of cracking that tier.
If you haven't done so I'd recommend taking some extension classes and build an alternate transcript. As others have said, you should also consider expanding your list of schools that you are applying to. Tell us what you want to do after B-school and people can tell you what schools outside of the top 5 have strengths in those areas.
But just based on your GMAT/GPA I'd suggest looking at some schools just outside the top 10. Again see the GPA ranges:
Duke - 3.06 - 3.79
NYU - 3.02 - 3.72
Michigan - 3.0 - 3.8
Cornell - 2.78 - 3.77
These are excellent schools with great recruiting and reputations. Of course you should also apply to a couple stretch schools as well. You might just hit the jackpot on one.
Don't give up.