@Corny:

, thanks for remembering. It's alright though, should have seen it coming. No worries.
@Twish: Yeah, it'd be the toneport. I'm ordering it tomorrow, so I should have it pretty soon. I'll have to get a mic too, but that shouldn't be too expensive (well, it doesn't have to be, though they can certainly can). It shouldn't take too long to get it all together and set up.
But nice choices everyone, it's good to see that everyone has such good taste (at least in my opinion). I'll just go ahead and break my own rule at this point.
If I were to elaborate on my choice as
Jerry Cantrell being my all-time favorite (though that is of course very difficult to say), it would be for what I see as the just about perfect (to me) amalgamation of versatility, expressiveness, tastefulness, poignant phrasing, and ability to compose. I always liked how he could do everything from heavy music to gorgeous acoustic, and even instrumental soundscapes. He didn't always shred, even though he definitely could, but he always seems to play what's just right for the song. He also just seems like a really cool guy to me, humble and gracious.
An extremely close second choice would be
Devin Townsend, easily. I just lose how amazing of a musician he is, from guitar to vocals, and pretty much everything he composes. As awesome as SYL is, I really like is solo stuff more. He's another one of those players who can shred, but doesn't feel the need to all the time. Not that it's bad to shred like crazy, but I just like it when it isn't full-throttle all of the time. That way when it does happen, you really take notice. It also gives the rest of the song more room to breathe, I believe, anyway. And he as pretty much anyone knows, is hilarious as well as very modest. No one can doubt that he lives and breathes music and does not do anything for fame or money.
Following those themes, two other favorites would be
Michael (and Chris) Amott and
Andy Timmons. Both just really expressive guitar players who speak so much with their melodies, and even though they do have insane solos and leads, don't forget the importance of the underlying rhythm and rest of the song as a whole and singular composition. Also, they both have probably some of my favorite tone, ever.
In terms of classical music, I really like
Bach, Rachmaninoff, and Mozart. For the most part I love the Romantic-era composers (like Beethoven) rather than Golden, like Mozart (though he is my main exception). The reason for this being that in the latter, the meaning and emotion of the song was pretty much all based on what they perceived as the beauty of its form. They saw it as a structure, and from an almost purely technical standpoint. The rules were (of course) golden. However with the Romantic era, composers like Beethoven just threw them to the wind and (what seems perfectly rational to me) showed that the music's meaning and emotion should, obviously, be conveyed by the music itself as you hear it. Forget all of the rules and what you're supposed to do. Which is why a lot of the establishment scoffed at it. The Golden era was mostly music for musicians. Not that every composer from that era necessarily thought that way or made boring music, but still.
Jean Sibelius is another great composer from near the end of the Romantic era.
And Baroque, I feel, kind of brought those two opposing ideas together.
Bach and Vivaldi being two greats, and favorites of mine, from that time.
EDIT: I could go on an and ramble on forever about other amazing musicians and guitarists, but I'll just slew a bunch of names in no particular order...
Jeff Loomis, Mikael Akerfeldt, James Hetfield, Mark Knopfler, Marty Friedman, Yngwie, Vai, Paul Gilbert, Jesper Stromblad, Slash, Dimebag, Anders Bjorler, and Alexi.