Of the two, I'd have to go with CCR but some of my favorites are Kiss, Def Leppard, Boston. I also liked Iron Butterfly, Cream, and a bunch more from that era. I grew up on hard rock and heavy metal. Even though I grew up in the heart of Dixie, the only way I can do country music is to turn on a Shania Twain or Julianne Hough video and hit the mute button.