What is the VERY BEST CD album you've ever heard?

Blood Sweat and Tears, Original Master Recording. 24 kt Gold Plated. 

I've had this for a while now, but finally cracked it open: Spheres II by Delerium.  Spacey, ambient, juicy, spooky, moody instrumentals.   Sounds exquisite. 

@tylermunns  

Terms "pop" and "rock and roll" have been in use by music industry professionals, since early- to mid-1950s.  I entered into what I thought was a discussion.  If this is your idea of a game, you can declare yourself the winner by forfeit.

I have a couple I never get tired of Jeff Beck Wired and Special Efx Confidential

1978 Denon release of Archie Shepp and Dollar Brand titled Duet. The cleanest, most revealing recording I've ever heard in any format, regardless of genre. Excellent dynamic range, unmolested transients, superb definition. Play this when you want to gauge just how revealing a system truly is.

https://www.discogs.com/sell/release/2738403?ev=rb