Its a vague question (how do they define “best”?) that unsurprisingly gives varied answers, so as an article it doesn’t help, but nevertheless its interesting.

http://www.ft.com/cms/s/2/cc353a92-6654-11e3-aa10-00144feabdc0.html?goback=%2Egde_62574_member_5827891711736586242#%21

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