Your favorite blues album?

I would like to know what you think to be your favorite blues album. I have several compilations, some Big Joe Turner, and several Chicago local blues artists, but am looking for more. Please include why you like the album. I'm trying to expand my "Blues" horizons, and I know I have come to the right place. I look forward to your comments.

Came across an interesting CD last week. "Booty and the Beast" by Popa Chubby. The songs are for the most part original, the recording quality is not too bad for a small label, and the serious, serious "Boooogey Woooogey" sound keeps my feet taping. I don't know if I would label it my favorite, but I think it deserves a listen.
I re-post, only to ensure that my word is heard (if only some pols could do the same). Read the previous (actually, it's two up) post and then seek out and find the Fat Man (Leslie West, you gotta lose some weight anyway). And then, well, just enjoy.
"Can't Beat The Kid"/JOHN HAMMOND (Capricorn)
"Johnnie B Bad"/JOHNNIE JOHNSON (Elektra Nonesuch)
"Hound Dog Taylor & The House Rockers"/HOUND DOG TAYLOR (Alligator)
"King of the Jngle"/EDDIE C CAMPBELL (Rooster Blues)"
"Swamp Boogie"/LITTLE FREDDIE KING (Orleans)
"Hot Wire 81/JIMMY DAWKINS (Evidence)
"The Complete Blue Horizon Recordings 1967/1969"/FLEETWOOD MAC (blue Horizon)
"Best of"/CEDELL DAVIS (fat Possum)
"Folk Singer" & "Plantation Recordings"/MUDDY WATERS (Chess?)
"Red Mud" & "Me, My Guitar & The Blues"/CHRIS THOMAS KING (?)