Stop talking about the Caravelles. This thread is about Dynaudio speakers and JM labs speakers - two speakers that I care about. The caravelles I do not, and neither do many of us. Everybody is sick of you hijacking threads.
To answer your question - I've recently auditioned both, and they both are fantastic speakers. However, I chose the Dynaudio hands down. The sound was much closer to full range, and the dynamics were in spades. The sense of air and soundstage these speakers created was breathtaking. The tweeter was every bit as good as the new be tweeter. I actually preferred the Dyn tweeter.
Lookswise, I think the JM labs look kind of silly, but in a cool way. The Dynaudios are plain on first glimpse, but on closer inspection and over time, they become very attractive - especially due to the fine + detailed wood craftmanship.
Todd