Your challenge will really be in terms of differentiating yourself. Your quant score is good enough right now to get into any top school. Increasing it won't help you differentiate yourself, so it's not worth taking the GMAT again to improve your quant score. Your verbal score is a little low, but your AWA score is strong. So, it's not critical that you take the test again, but if you're confident that you can improve your verbal score, go ahead and try.
However, you really need to think about what differentiates you from other, similar applicants. Your background sounds very common, unfortunately. Unless there's something in your professional background or (even better) something outside of work that makes you unique, then I might think about aiming at some lower-ranked schools if I were you. I don't mean to tell you to give up on your dreams, but just be aware that your odds of success at a top school may be low unless you can really set yourself apart.
Also, your age puts you at the top end of the typical range of b-school applicants. Adcomms will likely notice this, so you'll need to provide a solid reason why now is the right time for you to go to school.
Veritas Prep | GMAT Prep | MBA Admissions Consulting | Co-author, Your MBA Game Plan
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