Where does Fleetwood Mac rank among the greatest bands?

[Dragonfly]

I was only thinking about this today -

Blondie are playing in my home town in a few days and they were MASSIVE in the UK in the 70s and early 80s, had more hits than FM, and seemed to be bigger at the time - however they are playing fairly small venues (the one in my home town holds only 1,200).

Mac are playing at the likes of the Manchester Arena which holds 21,000 and I think the London 02 holds about 19,000 which they've filled 3 times.

To have formed in the 60s and still be able to sell tickets at that rate makes them a big deal, and Say You Will although not a big seller still made the UK and US top 10.

I'd put them at the top of the second tier, and U2 should be lower than them, by several notches! Apologies to any of their fans