This has been posted by ChrisF on the meta of all the other sites undergoing elections, so just in case you've missed it I'm adding it here.
Yi Jiang has put together a nice site that use the Stack Overflow API to display information on the moderator candidates.
The information presented is:
What the candidate wrote when nominating themselves.
- 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.
- Participation in other Stack Exchange sites.
- 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