Kaden all the way, Rome!!!! I LOVE that name. In fact, if I had another boy, that would be his name for sure! Although I have to say, I would spell it Kayden so that it is pronounced correctly. Otherwise, he is going to have to be constantly correcting ppl on his name.
I'm not sure about the popularity of it. How many of you have actually heard someone named Kaden? I sure haven't...