Boy am I going out on my limb here, BUT I detest the second, bogus version of Fleetwood Mac and especially the insufferable Stevie Nicks. They are my example of every single thing that was wrong with sterile, sedate American pop in the 70s, which led directly to the rebellion of punk and new wave.
The REAL Fleetwood Mac was founded by a true genius of blues guitar named Peter Green. Green was equal to Clapton in EC's Bluesbreakers and Cream days. In fact, Green replaced Clapton in John Mayall's Bluesbreakers when Clapton left to start Cream. Green formed the real Fleetwood Mac with Jeremy Spencer as co-lead.
Green was known as a real sweetheart, and when he and Spencer were naming their group, Green insisted on naming it after their rythmn section, Mick Fleetwood on drums and John McVie on bass. He told Spencer he knew the group would be successful and he and Spencer would leave in a couple of years. We'll be fine, he told Spencer, but they're just the rythmn section so they'll have a harder time. So let's at least leave them with the name. Thus, "Fleetwood Mac" was born.
Green's group flourished, just as he predicted, with great songs like Black Magic Woman (that's right, it was NOT Carlos Santana), Oh Yeah Pts 1 & 2, the gorgeous Man of the World, Love That Burns, Green Manalishi, etc, etc. Unfortunately, Green has handed a mega dose of LSD on a European tour and never really recovered. He lived until a few yrs ago, and even played some, but was never the same.
So Mick Fleetwood took the incredible gift of the name and hired Christine Perfect, a legit blues player from a group called Chicken Shack who became John McVie's wife. So far so good. But then he destined the group to permanent 70s schlock status by hiring American lightweights Lindsey Buckingham and Nicks. Sold a sh*t ton of records and I acknowledge many loved them. But IMO just like the Eagles after Bernie Leadon left, the serious groundbreaking days were sold out for painfully obvious commercial pandering.
When Green died a couple of years ago, Mick F put together an incredible tribute concert featuring Green's (and real FM) best work. It's available in the PBS archives and all music sites.