From what I can see your GMAT really is your only drawback, you GPA is decent and being 6 years out of college would be a non-factor. School is decent, and you have shown career progression within a large company. Being female, manager, media would all play to your advantage. If you were able to move high in the GMAT range your choices of school would greatly increase.
Right now, I think for UCLA PT program you would be marginal and probably on the lower end. Also the part-time program would make it more difficult to go into Management consulting.
You will also probably be borderline and low end for the USC.
I'm not sure about international schools. I do hear that they put less emphasis on GMAT's but that probably depends on the school.
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