Zakk Wylde plays guitar like its a string instrument, good guitarist just WAY too much vibrato
but on to the solos subject
Kirk Hammet: Fuel, One, Master of Puppets, Unforgiven, Unforgiven II, Enter Sandman, Orion, ok all of his solos are awesome...(its not a solo, but the melody in Harvester of Sorrow is wicked tight!)
Jimmy Page: all his too
Jimi Hendrix: all of his too
Eugene's Trick Bag- SRV vs. Vai
not guitar but would sound cool on guitar: melody in lightsabre fight in Star Wars: Episode 1
Van Halen- Eruption

(yep, the appidime(sp?) of an 80's hair band solo is in that too)
Rivers Cuomo- Say it Ain't so, Dope Nose,Gone Fishin(but unlike Guitar World says, he hasn't "brought back the solo"
Tony Iommi-anything off of Black Sabbath's 1st cd!
Kurt Cobain- Heart Shaped Box(nothing fancy)
Lynryd Skynrd- Freebird
The Who-My Generation(not really a solo, just feedback)
thats all I can think of for now. maybe we should start a thread about coolest intros, or just coolest melodys