Greg Giraldo - Good Day To Cross A River

Greg Giraldo was one of my favorite stand ups in recent years. Although he died before putting out much (one CD & one live special), it remains some of the funniest stuff I've seen in a long time.
Aries Spears - I Ain't Scared

As a whole I don't know if Aries is that good since he only ever does the material in this CD, but its really funny stuff. He has a special too, but its mostly rehashed from the CD.
George Carlin - Parental Advisory (1990)/Jammin In New York (1992)/You Are All Diseased (1999)

Three of my favorite stand up albums ever. George Carlin was the best of all time in my opinion, definitely check these out.
Honerable Mentions:
1. Kumail Nanjiani
2. Joe Rogan