So far, The Roxanne for me, 2 iem in 1 because the bass control. You get the charactistic sound of JH13 and JH16. So, it's totally worth getting the Roxanne. And of course, the Sound, it is unbelievable to my ears.
You can not go wrong with this, except waiting line! I'm happy with my CF Roxanne.
From the sound of your post, the Roxanne is good because of its versatility, in addition to the sonic qualities. Is it that much better than the JH16 to warrant getting one? If it is an incremental improvement, I'd rather use the money for getting a LCD-X or something. I am quite happy with my JH3a-JH16.