By definition, Classic Rock is an album-oriented genre. Still, each of us has our favorite individual songs. What constitutes the "best" of something is largely a matter of individual opinion, and few of us have 500 favorites of anything.
Because most lists are based on different criteria -- record sales, radio airplay, listener requests, the list-maker's personal preferences -- they don't all agree on which songs should be on the list.
Here's a list of the Top 500 Rock Classics that is the product of comparing those various lists, and compiling the results. Guitar chords and tabs, and artist profiles are included.