As the title suggests, this is a choice of two musicians/groups. (better, not best.) So: Janis Joplin or Creedence Clearwater?

Creedence Clearwater did some great blues, and they really did a good job of sticking with the origional blues styles. Janis, on the other hand, did less blues, but what she did really stood out (Turtle Blues, I need a Man to Love). I have to go with Janis, because I perfer Chicago blues overall (and because I love her voice.)