Best IMHO were Fool in the Rain and Hot Dog.

>I was around when these guys were first getting started. I started getting into them again recently and I'm amazed at how good they really were. I still listen in wonderment whenever I drive through a college campus and hear students blaring out Whole Lotta Love or Stairway to Heaven. I can still play most of their best known stuff on guitar, but one of my favorites is Over the Hills and Far Away.