I think the list is skewed already. I would like to add that I have parts of these albums in my collection. Like I generally buy Best of compilations. So of the albums posted some may qualify already for Must Haves, not my top ten however. Taken to extreme it comes down to most popular and we can find all kinds of Top Lists for that that are laughable.

Okay I'll agree to these albums or best of complations that contain versions of said artist that should be in one's collection.

Rush 2112
Neil Young- Harvest
Tapestry- Carol King
Hotel California- Eagles
Led Zepellin- Led Zepellin
Allman Bros.- Dreams
Pink Floyd- Wish You Were Here
Alvin Lee- Pure Blues
AC/DC- Back in Black