I have to say that after Civil War/OMD/BND hiring Jim is the only way I would buy another marvel comic. That said, I would still hate it because while Darkest Hours proved Jim can write Spidey really well, I still wouldn't want to read it because he would be constrained by the editorial veto of Joe Q.
AND, I would not want Jim's time diverted. I like having one new Dresden and Alera book per year, and Darkest Hours also proved that doing more than two books a year is not good for Jim's well being.