Did I ruin my potential shot at a top MBA?

I may or may not have a bit of a unique situation. After taking my GMAT, I was accepted to one of the very top accounting PhD programs, and like most PhD programs, extremely competitive to gain acceptance to. Now, a year into the program, I am starting to realize that it is not for me. PRIOR to starting the program, I had actually spent a year or so prepping for PhD admissions (taking GMATs, working on my applications, interviewing, taking pre-requisite coursework, etc), and I quit my job during this time to fully devote myself to this to enhance my chances of getting into a top PHD program. Thus, I have not been working for about 2 years now, since the time was spent pursuing this goal.

In any case, now I am thinking of returning to work, as well as pursing the MBA instead. I think I *might* have had a shot at the top 10 MBA programs if I had just gone straight in originally, but now I feel like my chances have kind of been destroyed, due to being out of work for a year and a half now because of the PhD program, as well as the failure of the PhD program itself. Although, I think I can spin the PhD as a life experience (which it certainly was), I don't know how forgiving business schools would be to these type of situations. I was hoping for your very honest opinion on this as well (feel free to be brutally honest), just to get a realistic idea of what my chances might be. Specifically, I am wondering whether I have a strong shot, medium shot, or weak shot at these programs.

Here is my profile:

Age: 30
GMAT: 750 (45V, 49Q)
Education: undergrad (3.75 GPA) and masters (3.9 GPA) in accounting from the University of Illinois
Designations: CPA, CMA, and CIA (all are related to accounting)
Work history:
- 2 years of big four external audit in Silicon Valley with clients primarily in high tech
- 3 years in internal audit at a leading software company. I joined the company immediately upon it's IPO, and had a unique opportunity to play an important role, allowing me to be an agent of change within the organization as it grew from a small and relatively unknown company into a multi-billion dollar company. As one of the fastest growing technology companies in history, this company was rapidly outgrowing it's existing business processes and controls, and I was able to play a consultative role in designing and implementing new processes for the company.
- 1 year gap preparing for PhD admissions
- 1 year in PhD program.

These activities I did while I was working, but have not done upon starting the PhD:
Volunteering: Various small volunteering activities, including tutoring regularly at the local library, helping out at the food bank, and many other ad hoc volunteering events.
Other: board member of local alumni association

I was also on the board of various organizations while I was in college, but that was quite a few years ago.

My motivation for obtaining an MBA is for a career switch into management consulting or strategy, to gain valuable networking opportunities, and to better market myself in the job market.