I've liked Dewey ever since I screwed up and ordered Momentum Space from BMG...
Joshua I've had mixed results with. My first try "Timeless Tales" started out kind of dull and got worse with each listen. On the other hand, "Wish" is one of my favorites. I'd say the jury is still out on Joshua, but I imagine he'll be looked at more and more favorably as memories of his youthful hype/expectations fade. While I haven't picked up any of his more recent outings, what I've heard on the radio sounds pretty damned interesting, unless of course your the type that's trying to keep jazz in a little box. (Which is not to say that's the only reason one might not like him by any means; I've just heard the complaints..."that's not jazz!")