It's a tough question to answer.
There are so many makers out there, and it also depends on the shape of your face. I have a particularly chubby face, so I know I have to stay away from some frame shapes.
Maui Jim's site is a start to helping you learn more about which frame and face shapes work together: http://www.mauijim.com/mjweb/public/...shape_sort.jsp
You also have to consider the when you will be wearing them. I will only wear some of mine with a suit, and others I will only wear with shorts/jeans and T-shirt.
I own the following one or more from the following brands:
Prada (You will be surprised by how nice some of their frames are).
Face a Face
Right now, I am enjoying the Beausoleil (http://www.beausoleil-eyewear.com/
) and Robert Marc.
Oliver Goldsmith, Alain Mikli, Cutler and Gross and Oliver Peoples all have really nice stuff.
Have not seen any Christian Roth for men, but my wife has a pair of the "c'hip-hop sleek" and they are really cool. Not to everyone's taste though. http://www.christian-roth.com/