To people living in Japan, which flip phone has the best style: docomo, kddi by au or softbank?

Question:

I'm not talking about phone services, I'm talking about the phone design and I'm only referring to flip phones. Which among the three has the most beautiful style?

Answer:

They are just carriers. Those who are producing phones are different companies like Sharp. And each of those 3 have many phones. There is no answer as to which one of those 3 has the best phone.