Fleetwood Mac
Fleetwood Mac's album Rumours is regarded as one of the greatest rock albums of all time. Most people would agree with that statement. Songs like "Go Your Own Way" have reached enormous success, but when you widen out and look at the rest of their catalog, it leaves the listener wanting more.
Deep Purple
It's a shame that Deep Purple's most popular song is the reason why so many people can't stand their work. Learning "Smoke on the Water" is a guitarist's rite of passage, but that opening riff really hits a nerve when you inevitably listen to it too many times.