Welcome to Music Banter Forum! Make sure to register - it's free and very quick! You have to register before you can post and participate in our discussions with over 70,000 other registered members. After you create your free account, you will be able to customize many options, you will have the full access to over 1,100,000 posts.
1) Billy Corgan on Siamese Dream (the reason I own a Big Muff)
2) Robert Smith on Disintegration (well...a lot of other stuff too but Disintegration is just great and got me into the whole reverb/delay clean sound)
3) David Byrne on early Talking Heads work (I love the idea he had behind it...all the guitarists at the time wanted their sound to be huge and beefy so he wanted the exact opposite and strove for a tiny thin sounding tone)
4) Duane Allman during the Fillmore East shows (the most perfect blues guitar tone I have ever heard)
5) Richard Millang on Bethany Curve's You Brought Us Here (the ultimate use of a delay pedal)
Honorable mentions: Tom Morello of any of Rage's work (didn't make it because I got kind of tired of him after a while). Robin Guthrie from Cocteau Twins (didn't make it because he goes all over the place with his guitar tone). Kevin Shields on Loveless (amazing tone but he didn't make it on the list just because...well I like the other guys better...plus no one should have to spend that much money to find the sound they want).
Great list, and the guitar sound on Siamese Dream is indeed fantastic.
I'm a bit of a broken record when it comes to this, but I love Andy Latimer's tone. Skip to 2:20 if you can't be bothered with the intro