Well the title says it all, also add the song which best shows off their work, with a link if possible. (Multiple songs ofc if you cant put only one).
Mine would be Synyster Gates, guitarist of Avenged Sevenfold. His skill and speed is incredible, especially in the solo he does in Afterlife and also Dancing Dead. Though there are others those are probably his best.
http://www.youtube.com/watch?v=HIRNdveLnJI - Afterlife
http://www.youtube.com/watch?v=ChKtCsodsf0 - Dancing Dead
So over to you guys.