Years ago I had a book that provided a short biography for many bands from the late 50s. At the top of every biography was a ‘classic line-up’. For some (e.g. The Beatles, Led Zeppelin or Queen) this is easily agreed upon. For others (The Rolling Stones, The Byrds, Fleetwood Mac, Pink Floyd) the decision is not so apparent.
So my question is, can we agree on the most important line-up for all these bands with a revolving door policy of members?