ralph lauren Outlet(detail2013-06-20 107) Who is the most famous fashion designer in the world On One Hand: Ralph LaurenThe king of off-the-rack clothes,ralph lauren Outlet Ralph Lauren has presided over a fashion empire for decades now, making his trademark polo player one of the most famous corporate logos in the world. While not the most cutting-edge fashion designer in the world, it would be hard to find one more ubiquitous and well known. On the Other: Donatella VersaceContinuing on the label started by her deceased brother, Gianni, Donatella Versace is as iconic as the clothes she designs. Both blend rock n' roll with fashion, creating a taste that's at once bold, brash and timeless. Few women have name's inseparable from fashion, but Versace is one of them. Bottom LineThrough business acumen and superb design chops, both Ralph Lauren and Donatella Versace have become household names. But only one of them had a cameo in the Devil Wears Prada and is regularly mocked on Saturday Night Live as not just a designer of fashion, but its victim--Donatella.