Kirk Hammett (Metallica) - Disposable Heroes. I think it matches the militaristic tone and subject matter of the song very well.
Ted Nugent on Stranglehold. I heard this on the radio recently and gave it some thought. No technical virtuosity, but what was interesting was a sense of tension and suspense during the solo, which is played over a slow-ish simple bass/drum section. I think the old-school echo adds a certain mood.
Stevie Ray Vaughan on Lenny. I love clean Fender Strat sound.
Tom Morello (Rage Against the Machine) on Bulls on Parade. My favorite dose of his version of Rap DJ scratch technique.
David Gilmour (Pink Floyd) on Comfortably Numb. Another guy making fantastic use of what a Fender Strat gives you, and conveying shitloads of emotion in a relatively small number of notes.
Kirk Hammett (again) on Bleeding Me. With the "Black Album" he started way over-using the wah pedal to the point of being a caricature. However, it is perfect in this song.