Morrigan Aensland is one of the more popular characters from the Darkstalkers series. On Board 8, she's considered to be the origin of The Jug Factor aka "TJF." Her only contest appearance was the Summer 2002 Contest where she proceeded to defeat Spyro the Dragon, but expectedly lost to Mario in round 2. Despite her impressive finish on the x-stats, no one has really cared to bring her back in the contest to determine whether she was a fluke or not.
...Until the Summer 2013 Contest, probably because her appearance in Marvel vs. Capcom 3 made her relevant enough for a return.