McKinsey is considered the best MC by pretty much everyone, whether it's true or not is by the by as they've built up such an aura that very few will challenge it.However, I'm a bit confused as to why you'd wait 2 years to go there. What are you going to do fro 2 years? Remember McK takes its pick of high flyers and acheivers, effectively doing nothing or some dead end job will close your options off not open them up. And going travelling doesn't count as valid experience either.As for preparation, well, it may be a harsh message but there's only so much you can do. If it doesn't come naturally after reading so many online examples then maybe, just maybe, it never will. Consultancies want people who can think on their feet, not just recite case studies verbatim. My advice would be to go and apply to a dozen strategic consultancies and see how you get on. If you get through to final round and even get job offers then you can then use that as a yardstick to getting to McK. All these companies will be full of bright people using very similar methodologies, so the quality of your career will be the same as at McK even if the perceived prestige isn't quite as good.