It’s reported that the Blizzcon custume contest was a impressive show with a total of 98 entries - and now Blizzard releases alot of nice material in their picture gallery, stating that:

“The level of creativity and effort displayed in BlizzCon’s costume contest was truly impressive – rivaling even the high standards of the previous BlizzCon. There were too many worthy photos to cram into one huge gallery, so we’ve further subdivided the costume photos. View the winners’ gallery, the professional-photo gallery, the general-photo gallery, and the group-photo gallery of this event.”

Worldofwar.se  has a nice picture of the four winners, including a Human Rogue, a Moonkin, a Terran Ghost from Starcraft, and a Warlock in amazing tier 6 armor. Also Joystiq.com has some great pictures that you will find in their gallery.