Well, I think much depands on the actual work you will do at these companies. If you wanna put your designed strategies into action in order to add real value to your customers and not just leave him alone with some hundred ppt slides, I would not suggest the likes of McK or BCG. Sure they have pretty good guys doing some awesome work, however I expect the marked especially for top management strategy work will dramatically change in the course of the next years. Thus, I would look for companies doing the full range of the work.cheers