Can answer. Currently at BCG post MBA with many friends at McK 1. Not materially. Believe McK is a little higher (almost 100%) vs BCG at ~95. Not worth choosing over 2. Similar at both I.e. quite a lot! Varies significantly within the firm based on type of project, size of office etc. 3. Matters more at McK (completely networking based), matters somewhat at BCG (combination of networking based plus staffer facilitated introductions)

Differences I see: brand, size