So, we can all easily list generic buttrock status hard rock bands or what have you, but what about try-hard blues rock artists? Do they exist?

There may be too many unknown ones to name, so what about the ones that became successful?
Butterfield Blues Band w/Michael Bloomfield
Early Fleetwood Mac w/Peter Green
Blind Faith
The Yardbirds
The Rolling Stones
The Doors
Janis Joplin
The Allman Bros
Joe Cocker
Ten Year After
Johnny Winter

Oops, I guess these are seminal Blues-Rock bands.
"Your sound is in your hands as much as anything. It's the way you pick, and the way you hold the guitar, more than it is the amp or the guitar you use." -- Stevie Ray Vaughan

"Anybody can play. The note is only 20 percent. The attitude of the motherfucker who plays it is 80 percent." -- Miles Davis

Guthrie on tone: https://www.youtube.com/watch?v=zmohdG9lLqY
Quote by ZeppelinSkynyrd
Jimi Hendrix
Led Zeppelin
ZZ Top

Those Are the ones that pop right in my head

Dude ZZ Top were like the first Desert Rockers, they weren't generic