Hi Joe,
Interesting dilemma! You're right that a 2.6 wouldn't get you into most top MBA programs, and IMO it was a good move to get a second Bachelor's - some people opt for a light Master's to address the same sort of issue -- but I have no reason, drawing on my experience, to think this will be an automatic deal-breaker for top business schools. Adding that terrific GMAT to the mix enhances your credibility; however, the edX courses don't carry much weight with admissions.

You'll definitely need to explain your decision and what you got out of it. Your admissions readers will most likely assume you had some kind of maturity/adjustment issue during your first undergrad, so you will want to explain this in a frank, "just the facts" optional essay.

Now, where does that leave you for the schools on your list? Community leadership, such as your work with Syrian refugees, will be an asset (recruiting and leading teams of volunteers from your workplace would add even more value). International exposure is unclear here, so emphasize whatever cross-border experience you have, either as a student or professionally.

It sounds like you plan to apply in, say, 2017, so you can spend the next year strengthening your work leadership and community service, and traveling to the US and UK to visit the campuses on your list. Taking this time to build strong roots in MBA-land will enhance your chances and help offset any confusion caused by your educational path. With clear essays, strong leadership and well-researched school choices, my opinion is that you should be fine with the schools on your list.

One last comment: it's not clear how old you are, but try not to delay your application past the age of 27 or 28, because at that point age starts to become a statistical factor in admissions. Not a deal-breaker, just a minor speed-bump that is best avoided if possible.

Good luck!
Margaret Strother