look around for a video of jason becker doing paganinis 5th caprice... insane!!! Yngwie is fast... Rusty Cooley is faster... Michealangelo is fast as well... its hard to judge whos fastest though... because you're never going to get guitarists to "race" or play side by side and see who can play notes faster. just from what i've seen i would have to go with Rusty Cooley