The Beatles are automatic... they are above being mentioned. This is a rock bands thread though, they would be classified more as "pop".
The Atomic Rooster Tower Of Power Dr. John The Fugs Pacific Gas and Electric Peace and Quiet The James Gang
Blind Guardian 4tw! i also like Queen, Trans-Siberian Orchestra (great guitarmanship), hendrix, Led Zeppelin, Steppenwolf, etc
True, though some Beatles ("Come Together" for instance) is more like rock. And in the old days there wasn't much of a difference anyway.
If guitar qualifies as "Rock" music: Reich and Roll, excellent band. They play old, 19th C and early 20th C German military music with Rock instruments. http://www.reichandroll.com/Prussian Glory Clip.mp3 one of thier free downloadable files at thier site. It's cool.
metallica led zeppelin fleetwood mac(both line-ups) rammstein hendrix lynyrd skynyrd megadeth joe satriani system of a down the allman brothers band
This is hard but here are mine: Rolling Stones Fleetwood Mac Guns-n-Roses Kiss Metallica Thin Lizzy AC/DC The Who Iron Maiden Red Hot Chili Peppers Tool Marilyn Manson REM Sisters of Mercy