The one I played after his death was announced yesterday was the 1972 Greatest Hits, which remains a superb, concise collection.
This was the first ever CD release of the UK album. The extra tracks also had the first CD release of the single version of 'World In Harmony'. It will be in an upcoming box of their entire 1969-74 output for Reprise.
http://www.imwan.com/phpBB3/viewtopi...0bbe69044ee84a
The Blue Horizon period is messier. The CD reissues with extra tracks sound good, but studio chat/false starts were inserted in between the master takes. This is because the contents of the 6cd Blue Horizon Sessions box was simply ported over for the separate reissues.
The one-off Immediate single 'Man Of The World'/'Someone's Gonna Get Their Head Kicked In Tonight' slips through the cracks of these releases above. In fact, it's worth trying to find this now very old, deleted CD set which has
most of their Blue Horizon work (as it was originally released) and the Immediate single.
https://www.discogs.com/The-Original...elease/3240146