@arkhamc1tizen: No worries, will do.
Cold's my personal favorite. He has criminal intentions, but not deplorable. He's got the tech to significantly slow Flash down and murder pretty much anyone in the DCU if he wanted, but his personal morals ensure that doesn't happen.
Norman Osborn is my pick in terms of overall best villain. The guy friggin' attained immortality through a cult ritual for the sole purpose of tormenting Peter Parker forever. That's pretty intense.