Hello,
Thanks for your post. So it sounds like all sounds good in terms of your GMAT and GPA; your work experience as you've assessed is a bit less typical/traditional but you can still likely aim to showcase the experiences you've had, what you've learned over your career, and the perspective you'll bring to the class through using stories and anecdotes of your professional accomplishments. You can focus those stories and anecdotes as you see fit, if you'd like to downplay finance for example etc. My feeling would be the that MC is a potential option, but I also encourage you to research and do your due diligence so to speak... consider setting up informational interviews with various MC firms, speak with someone in HR and/or consultants and get direct feedback on your past and how that plus the MBA will be perceived, etc. You can potentially even touch on that (discussions you've had, research you've done) as you discuss your career vision in MBA interviews, food for thought. In terms of schools, HBS & GSB are going to be a reach for just about everyone, given that they accept about 11 and about 6% respectively!! So they turn away PLENTY of qualified applicants.... just know that going in. The other schools will hopefully consider you, if you are able to show what you'll bring to the class and who you are as a person. In terms of other options that are strong for consulting, there's also Columbia, Ross, Wharton... Fuqua....
Keep us posted on questions and how we can help, good luck with your decisions and the process!