In reply to Hugh Janus:
I would say Marty Friedman has a lot more feel than most of these shredders. When he was in Cacophony it was all a bit boring for me, but once he got in Megadeth and threw in some eastern influences and slowed it down it got really really good (helped by some good tunes) I'm sure you are familiar with Tornado of Souls . This is Marty at his peak as far as I'm concerned. There you have a solo which pulls from Gary Moore, Randy Rhoads amongst others and oozes feel, structure and is not just speed for speed sake. (which is why you find so many youtubers playing that solo and struggling to sound the same even though they are playing all the notes)
You mention Chopin and Franz Liszt. This might sound a bit weird, but I often play Liszt at dinner. I have three young children and have found piano concertos calm them down at the dinner table. Un Sospiro gets played mostly as it's my favourite. Not loudly, just in the background so we can all talk. I have some vain hope that this will somehow inject some culture via osmosis into them, but they still request Trolls and look disappointed when the music comes on
Chopins' Nocturne no.2 E flat is another piece that everyone knows, relatively simple, not fast but is notoriously hard to learn and play well, due to the rise and fall of the tempo. Played well it is stunningly beautiful.
But when we come to the distorted shredding guitar , I want them head banging, I want satanic imagery being burnt onto my retinas by lazers and I want the crowd to all be drunk playing air guitar. It doesn't work for me as a static appreciation concert. But that's just me...you are absolutely right...it is all subjective.
Try Liquid Tension Experiment if you haven't heard of them, might be up your street