According to my statistics in I-Tunes, my favorites are:
Howlin' Wolf: Moanin' at Midnight, Evil, Killing Floor, Goin' Down Slow
40 Cups of Coffee - Danny Overbea
Muddy Waters: Young Fashioned Ways
Robert Johnson: Crossroad Blues, If I Had Possession over Judgement Day
Blind Lemon Jefferson: 'Lectric Chair Blues, Matchbox Blues
Son House: Low Down Dirty Dog Blues
Eddie Burns: Treat Me Like I Treat You
Little Milton: What Kind of Love is This