Well, David has been around since the early 80's, and if he is not well known yet outside of the guitar world (where he is a highly sought after performer and master class teacher), well, that says more about the state of the classical guitar as an instrument per se than anything, as David is absolutely a first rate player. He, like Barrueco et al, redefined the state of the art between 1980 and 1990.
Check out Jason Vieaux, as well as Nicholas Goluses and more recently Antigoni Goni, all on Naxos, to see what the better players are doing these days.
If Yamashita has started to think like a musician and not a guitarist, well that is news to me. The guy CAN play anything, and it is a shame his musical choices are so dramatically at odds with the score.
Another player is Sharon Isbin, but I rarely warm up to Sharon's playing (she seems to be entrenched in the politics of being a radical lesbian femenist). Still, when she lets herself she makes some beatiful music.