Mitnick is a good choice for #1 cracker (why do people persist with the 'h' & not the 'cr' ~ http://catb.org/~esr/faqs/hacker-howto.html#what_is ). Mitnick is probably the best known ( http://www.takedown.com/bio/mitnick.html ) but his special area of exploitation is "primarily human" and focus of his book "Art of Deception". This makes him an exceptionally effective cracker, exploiting both man and machine.
While some are good with machines, Mitnick is good with machines & humans cracks ~ http://www.kevinmitnick.com
The article title is like a 'list of the best arsonists'. Not classy.
Robert, if you're reading this, do you still (post-sentencing) regret creating the worm?