Like Superhuman said, that album of Vinnie is awesome melodic shred.
Matthew Mills is ****ing fast, but he has no taste, however with incredible control of the neck.

No Boundries of MAB is freaking fast as, and clean, tho i dont like him.

Dragonforce, I dont have time to listen to that ****!

P. Gilbert is extremely fast and CLEAN!

Michael Romeo is very fast for a guy with small hands.

But my favourite would have to be Mr. Vai. I've seen him do some sweeps it sounds like just a blur.......