When we are at math.SE homepage, we can see the asked question, and at the left of the title we can see information about the numbers of votes, answers and views, like this:
What I suggest is to add for unanswered question the number of comments. Here is the reason: questions which have not received any comment will get more attention, since it will make the difference between the unanswered questions
- which have been already solved in the comments,
- which need some precisions or context, and we can't do more until the OP replies the comments.
What do you think about that?
Update: as Nate Eldredge says, the number of statistics associated to a question can be judged as excessive. So what I suggest is that each user can choose in the option to display or not the number of comments to unwanswered questions.
Update 2: has the idea being discussed between moderators?