I gotta think Benoit is the most likely pick (for better or worse). #1, I get the sense that the Trustees like what McDavis has done, and picking an insider would at least have the feel of a continuation. #2, my experience has been that the internal candidate generally has the advantage in academia. If she wasn't the pick, someone would have given her the hint not to pursue it. That is, unless I'm wrong on #1, and the Trustees want to clean sweep the administration and don't care about hurt feelings one iota.
Benoit might very well be the front-runner (I don't know if that's the case or not), but I don't see any reason for the Trustees to worry about her feelings: she is currently the Executive VP/Provost and that position will almost certainly be going to someone else when the new President takes over. That being the case, if she doesn't get the top job then I don't really see her staying in Athens. I'd assume she move on to another university if she wants to stay in the Senior Administrator (e.g. Provost, Vice-President, something like that) job category. Ideally (for her) either a lateral move title-wise but to a more prestigious school or a step up to the Presidency at a similar or less prestigious school.**
**I'm basing my assumption that Dr. Benoit doesn't want to return to being a professor based on her CV, which seems to indicate that she hasn't been an "actual" professor (as in acting primarily as an academic rather than an admin) since about 1998