Amazon (AMZN.O) and Apple (AAPL.O) are the world's most valuable brands but Chinese brands are rising up the leaders list and are more valuable than Europe's top brands, according to a global ranking by Kantar's BrandZ. Amazon, founded in 1994 by Jeff Bezos, remained the world's most valuable brand with an estimated value of $684 billion, followed by Apple, founded in 1976, at