The QS ranking is online at: http://www.topmba.com/mba-rankings/global-200/2011

Rather like Eduniversal, this ranking gives a strong weight to the main business school in each country. As a result, Copenhagen, CEU, EBS and the Warsaw University of Technology get into the European top 20 while Birmingham (a second tier school in the crowded UK market, and which the FT ranks in the European top 20) doesn't get into the QS European top 50. So, as with eduniversal, this is a useful ranking to compare inside countries - but not across countries.

Would you trust a ranking listing an institution called "Massachusett Institute of Technology"?

http://www.topmba.com/mba-rankings/global-200/2011/region/north-america

ESMT and WHU over Mannheim.....

Well in terms of the MBA alone I am not surprised. The QS ranking is based on leading employers and both ESMT and WHU will feed into big brand firms more than mass market Mannheim