Moore's blues songs are a million times better than his rock era, IMHO. Some nasty-sounding guitar tone there.
Additionally, King did very well to keep playing the blues over such a long period of time. If you listen to the songs from the 80s you can hear that he had to adjust (slap bass / boosted treble bass, round squishy synths and massive reverbs, horrible tom sounds) but he did well to carry on playing the blues through it and come back to a more traditional (normal!) sound afterwards.
Interestingly, he never played chords!
BB deserves a good send off. I don't know what to say, other than thank you for everything you did for the guitar, and for music, and for being a top bloke. I didn't know him personally but love how generous and charming he was in this video (some stunning playing by Derek Trucks too): https://www.youtube.com/watch?v=SS0NHlWgi5w
It might just be a rubbish mix on the album though - in person it is likely very different.
Of course you never appreciate this as much as you do once they're gone. May they both rest in peace.
♬ this thrill is gone away from me ♬ ~ http://www.youtube.com/watch?v=iUaevnP1LLg