Why was Stevie the breakout star?

[Artemis]

I saw a comment on youtube which made me think; why did Stevie Nicks have the most solo success out of all the Fleetwood Mac members?

The youtube comment was "If Lindsey's production was so brilliant, and a key reason why Fleetwood Mac was so popular, why wasn't his solo work the most successful?"

Which really struck me, I don't know why, but it just made me think... Why Stevie? Lindsey was the better musician, Christine the better singer, yet, Stevie was the most successful. She's the one who, even today, sparks the most interest from the media; and often gets the most recognition. I see Stevie refered to as the Queen of Rock and Roll, while no one else from Fleetwood Mac gets such an individual platitude. As a group, they might get called "Legendary" or some such, but, as solo artists, it's Stevie who gets all the adulation.

This isn't a Stevie vs Lindsey vs Christine thread or anything, I'm just rather curious as to why it was Stevie who was, and still is, the most popular, why she alone managed to sell multiple platinum records both within the confines of the group and as a solo star.