I have long favoured awarding the prize to Richard Posner, but increasingly I think I would favour awarding it to Deirdre McCloskey. Note that I have made the appropriate change in the brief post under the banner for this blog. I'd be especially happy if the Nobel prize were awarded to the two them jointly.
I discussed these views and other things with Doug Goldstein here. The interview with me begins at about the 8:50 mark.