First - I dont mean to be harsh - but you still think like a kid. I suggest you do some research before jumping to conclusions.
1stly - your accademic qulifications are fine to get into any top MBA. But, as I said before, you those account just for a very small % of the admission process. I am surprised, if this is so important to you, that you have yet not gone on a good GSB site and seen what they require.
Very important are:
- proven track record of achievement: whether in consulting, finance, industry or farming - its almost irrelevant. See the stats of where people come from - 90% are usually not from FTSE 200 companies
- A proven ability to lead. MBA schools create leaders - they want to see what you have done, so far in your career, to lead.
- Your essays of why you want to join.
- Your letters or reccomendation. I cant stress this one enough
- Your GMAT
- Your accademics, language skills etc.
These are just SOME of the things that they look for in a candidate. I know of people that have gone to Harvard without having any degree at all, as I know people that have gone to Oxford that have been in prison.
Another thing I feel I must tell:
Getting into Wharton will not guarantee you a place at McKinsey. Far far between. It will, perhaps, increase your chances of getting an interview.
In all honesty, it is rare for McKinsey to hire out of Acn. Bain, BCG, Booz are more likely.
The way I see it, if you really want the best shot, try the following:
1) Quit accenture and go to industry for 5 years. Get some DEEP expertise in energy, utilities, pharma, FMCG, law or other relevant sector. Then go do your MBA then re-apply.
2) Stay at ACN but do what Acn does best - technology. They are the Gods at some tech stuff - no debate. And I have seen many people from their SITE practice join McKinsey BTO and our tech practice too. Then try and move across.
The question I really want to ask you - is WHY do you want to join McK? Is it because people here talk about with awe? You must really know your reasons - wanting more money and doing 'strategy' just dont do it.
Finally, change your attitude. McKinsy-ites don't think like 'will i be able' - they think 'I CAN'. get up, do your stuff, be rated outstanding for 5 years running, jump from a1 to c1 to c3. Then show your leadership qualities, do your MBA - and then, only then, apply.