The document compares the 2016 brand valuation league tables from Interbrand, Millward Brown, and Brand Finance, finding little consistency between the three, with only 37 brands appearing on all three lists and valuations of the same brand differing by an average of 2.4x. While brand valuation methodologies are conceptually robust, significant subjectivity exists in how each calculates brand values. The inconsistency undermines using brand valuation to prove the business value of marketing.