Here's the contrast to the Fleetwood Mac video below. Before they sold out this is what Fleetwood Mac sounded like. All strait-forward blues rock. That's guitar god and Eric Clapton rival Peter Green on lead guitar. Fleetwood Mac is one of the rare acceptions when it comes to changing your sound to make a buck, I think they actually sound more unique and interesting without the classic blues sound. You decide which version of the band is better.
According to music critic Patrick Donavan " ... Fleetwood Mac is one of the great lost blues bands, the quintessence of California soft-rock and LA excess or one of the greatest pop groups of all time." See why with this classic live performance of "Dreams"