Depends on your face shape. When I tried on some, the ones I thought would look best weren't the ones I ended up picking. You really need to take someone along and try each on.
yup, i agree. i really thought my face was too small for the thick frames but i eventually found the perfect pair. you would never be able to tell from just looking at pictures.
i have prada ones that are like the JC ones, so i like those :p