I wish that I had the basics to be able to make meaningful comparisons. Right now, I kinda live in the world of YouTube and edited videos, and most guitarists that I see come through that particular lens. That being said, I sat right in front of Hao Yang when she played a concert at the New York Classical Guitar Society last year, and she blew me away. Stephanie Jones is someone who impresses me, but I only know her through YouTube, and as I mentioned above, I take any YouTube video with a grain of salt. I think that Julia Malischke plays some really exciting material (the YouTube comment applies here as well).