I must have spent half my teenage years playing air guitar to Megadeth and Metallica records. Marty had some amazing solos, even listening back now they still sound so dramatic and energetic. Loved all the stuff on the 'Youthanasia' album in particular!
I have searched YouTube high and low and still haven't found anyone who can really
do it justice. Yeah, some of them have the speed, but it's the flow and the smoothness of Friedman's version - it's so technical and so fast, yet one of the most elegant solos you'll ever hear. That's something I've yet to see any other guitarist successfully replicate.