Also in the top 10 are some perennial US big hitters -- Wharton, Columbia, and Chicago -- as well as London Business School, Spain's Instituto de Empresa and Insead, jointly based in Spain and Singapore.

CNN: The global business qualification

The only non-U.S. names likely to appear in any of the top 10 lists are Swiss-based IMD, INSEAD of Paris, Spain's IESE, ESADE and Instituto de Empresa, the London Business School and Imperial College (UK) and Belgium's Vlerick Leuven Gent Management School.

CNN: U.S. names dominate B-school lists