Yi Jiang has put together a nice site that use the Stack Overflow API to display information on the moderator candidates.
Click here to see all the information. (Dead link removed)
The information presented is:
The nominees election
Answers/Questions on the main site and it's meta Up-vote/down-vote ratio Average reputation earned per post Average reputation earned per day.
It displays what Yi Jiang considers to be noteworthy badges and whether the nominee has the badge and a summary of their recent activity.
The information is presented as is with no commentary.
It came about from this question on MSO Moderator nomination possibly useful statistics