"Blood and Chocolate" is probably EC's most unabashedly dirty album--maybe the only record he made with the Attractions where his own big, distorted guitar chords are the predominant sound over the rhythm section. In fact I always felt like the Attractions' playing on this record was a little rougher around the edges than usual--whether by design or not, it has always worked for me as a sort of metaphor for the internal chaos going on within the band at the time. An upper-tier EC record for me too (if not quite as upper tier as "King of America").
I go hot and cold on Elvis. I own 4 or so albums and I've seen him live twice. The catalogue is a bit daunting when you aren't too familiar with it (now I know how people feel about Dylan's catalogue).
The Very Best of EC&TA Extreme Honey Painted From Memory When I Was Cool
I've got a copy of The Roots colab but I haven't heard it yet. Currently getting reacquainted with PFM. Damn it's good and that show was jaw dropping.
The 2005 Rhino reissue if it's available. I don't really know how any of the mastering jobs stack up against each other but the bonus material on the Rhino edition is stellar.