I recently demo'd the JH13 and Roxanne's and I found the Roxanne's to be a bit dark. Of those 2, I'd personally favoured the 13's, but the Roxanne's may suit your music tastes a little better. Plus the bass adjust pots are a great feature.
The reviews on not only the Noble K10's sound sig, build quality and overall performance, but also Noble's excellent customer service has won me over so I've placed an order for them. They're still 6 weeks away though.
Noble Audio is pretty much Heir Audio, or was since most of them were there first. I have a pair of 8.A's from when they used to be there and yeah, those guys are awesome. They put up with all your stupid questions and give you great recommendations.
That and the Wizard is truly an artist of his craft.