BazingAu
The BW school rankings were a bit off-balanced before, and are now off-balanced in a different way. I think they are trying to differentiate themselves from US News, but that still means they need to have methodologies that make sense. Duke taking #1 honors above Wharton and waaay above HBS is nonsensical, and discredits their rankings. (It's almost like the US News fiasco from 1999...where they placed CalTech at #1 because they tweaked their methodology...after an uproar by EVERYONE (not just the schools), they had to retweak.)
The fact that schools move around so much in BW is a result of the fact that the scoring clusters the schools so close, that small changes in results can sway the rankings. In another word, instead of the linear appearance of 1, 2, 3 ranking, the schools are more grouped like 1, 1.01, 1.04, 1.045, 1.05, 2.02, 2.021... The usefulness of the ranking is to see the clustering within the rankings, since those schools are likely to have similar performance.
One thing I do like about BW is that it doesn’t tamper with the survey “noise”. Whereas I strongly believe USNews does. For example, for law school ranking, the same 14 schools are ALWAYS ranked in the top 14. It is hard for me to imagine that a #15 school (UT, UCLA, Vandy) has NEVER outperformed a #14 (Cornell, Georgetown) school in the history of USNews ranking. There have been many law school scandals, changes in regional economic prominence since the inception of USNews ranking. NEVER once is hard to imagine. Underdogs can get lucky once or twice, just look at all the Cinderella teams in March Madness.
For me, BW is like a startup. It’s trying to reflect the changing business school climate. USNews is like IBM, staying the conservative course -- “no one ever got fired for buying IBM.”