Favourite guitarist is David Gilmour, best solos are;

Agree with little wing on Comfortably Numb, the liver version is simply the greatest solo ever, though the album one isn't too bad either.

Not strictly a solo but I love the intro for Coming Back to Life by Floyd as well, David Gilmour at his best, not the hardest bit of guitar work ever but one of the best intros ever.

Nothining Else Matters by Metallica has a pretty good solo in it, as do alot of Gamma Ray songs.

All I can tink of at this early hour, I'm sure I'll think of more later.