What is the best guitar solo you have ever heard?

i can think of a a lot off the top of my head, but i can't decide. every song on Painkiller has incredible solos, also just about any Angra solo, specially Metal Icarus
Hibria, that band they mentioned a while ago here has some damn good solos too
 
1) Led Zeppelin - Stairway To Heaven
Amazing build up, fits well into the music ands shows technical brilliance. Truly amazing.

2) Deep Purple - Highway Star
A simple arpeggio progression sounds absolutely amazing if played correctly.

3) Deep Purple - Child In Time
4) Iron Maiden - Powerslave
5) Guns N' Roses - Sweet Child O' Mine
 
Well I have a lot of favorie solos particularly from guys like Becker, Mustaine, Friedman, Laiho, Schuldiner, Romeo, Tolkki, Vai, but one's that immediately come to mind are Liimatainen's solos on Weballergy and Black Sheep. I really feel those solos. :headbang:
 
all ARK solos lately... theres no particular single that is the best... theres even nothing considered as the best... everything has something astonishing :p

O.N.A - Teraz juz wiem ... amazing, the masterpiece of gutiar solo :)