Alright, so she is really young and not nearly as well known as, say, CoCo Chanel, but Conrad's style is simplistic, stylish, and refreshing. Her line from Kohl's also follows the same lines: clean, simple, and cost-conscious. And let's not forget the crazy braid phenomenon that is happening right now that can be, in part, contributed to LC.
Another Hills gal, Whitney Port, also has a great clothing line. Her personal style is a bit out there but she does take risks, I have to give her that. Her clothing line is ethereal, flowy, and incredibly girlie.