Artie Lange and Jackie Martling are both amazing comics. Not because they can get up on stage and tell jokes, but because they have a unqiue talent of having converstational comedy skills.
I really think the skills of conversational comedy versus planned stand-up comedy are very different and light years apart. Both Artie and Jackie are two of the best out of a set of only a few that are good at this type of comedy.
Some of the others that fall into this category include: Kevin Matthews, Steve Dahl, Don Geronimo, Jonathan Brandmeier, Kidd Chris, Ron & Fez, Bubba, and even to an extent Opie and Anthony.