"like SRV using some terrible sounding Marshall halfstack on TV, he sounded like an electric razor and not his usual fat natural guitar sound."
Ummm, that would be my amp!

This is an interesting discussion. I've watched someone tap-tune a guitar top and while it made the guitar ultimately come alive, I think it accomplished what you are talking about. It's not the frequencies you produce, it's the ones you attenuate. All my electrics sound very pleasing to my ear acoustically. I've played the same models side-by-side where one sounds good and the other not so much. Acoustically they were good and bad too. However, pleasing to me may not be pleasing to you. Like you said, EVH sounded raw and cool in the beginning (MHO!). The Eventide Harmonized stuff of later years was not as exciting to me. However, I'm sure you could find many people who disagree with me and you. I can't stand the JCM800 mash of the 80's. However, I have always been a HUGE fan of Boston. I think the melodies and harmonies and phrasing and tone are unreal. My wife thinks it all sounds thin and tinny, worse than bumblebees. And after the second album, there was not a tube to be found in the signal chain - blasphemy! I think the 80's sounded like bumblebees... I think Black Sabbath's Tony Iomi sounds fat, heavy, and full bodied (anyone disagreeing has never heard them live...). My wife thinks he sounds worse than Boston, thin and tinny. I am also a big fan of bands like Alter Bridge, a good example of what I call the Mesa mush. But holy cow, what a great variety of tone! My favorite? Just listen to Deep Purple, Made in Japan. That is guitar nirvana for me. But guess what my all time favorite is... Andres Segovia sitting on stage, no mic, in Powell Hall, where the St. Louis Symphony plays. THAT tone was unbelievable. You certainly can not compare ANY of the above as they are apples and oranges. Maybe I have musical ADD, but I really think it has to do with what moves you inside. It takes all kinds to make the world go round, otherwise we would not be suffering with cRAP blasting at every sporting event. Somebody must like it. I'm starting to sound like my dad!
Jim
ps, you need to ignite something while you are thrashing your guitar and feedbacking. THAT is where the tone comes from!

(This is where 'Nit comes in and calls me a degenerate!)