I can play The Great Debate, and about 10 songs off that list gus. Satches stuff is hard because his fingers move so rapidly, and he kin dof rolls his notes into one another, he has some hardcore legato. But really I have to agree with ace, Shredding is not an aspect of guitar where i think, "This guy Can't be good, he doesn't have as much speed as so and so". I actually think Alex Lifeson's stuff is real hard to do, he has a wierd style of playing.

But if you want me to list some songs i Can play.

Satch - The Extremist
Satch - Satch boogie
Dream Theater - Learning to Live
Dream Theater - Lines in The Sand
Rush - La Villa Strangiato
Rush - The Trees ( I love that Intro.)

But what i mostly do all day is play to backing Tracks and just jam. Or i make up my own music. When i was about 9 years old i could play Over The Hills and far away, ( Zepp) and Silent Lucidity ( QR). So I also have learned very quick, but through lots of practice.