I was a Johnny Winter fan from when I was about 15. Lived in a quiet older neighborhood in the suburbs and all the kids on the street were into Texas chainsaw blues, mostly played on my parents GE console stereo. Gotta love it.
The previous posters have it right. Johnny Winter And Live is one of the most high energy albums of all time. His versions of Johnny Be Good and Jumpin Jack Flash kick ultimate ass. John Dawson Winter III is probably his most comercial album, but it's worth it for one song, Stranger. Still Alive and Well is great, and he has made some stellar appearances on other peoples' records as well. Try Roadwork, by Edgar Winter (great version of Still Alive and Well) and Hard Again, by Muddy Waters, which Johnny produced.
MMMMMMmmmROCK N' ROLL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!