I also saw it at the Guthrie in Minneapolis, and thought that the woman (whose name I cannot remember) sang the role much better than Pinkins, who I had assumed was just having a bad night when I saw her. I also liked the staging more than on Broadway, although I have to admit that I admired the show more than I liked it.
If Pinkins' voice was a problem, why did she get a pass when Bernadette Peters and Boyd Gaines received very dismissive -- almost brutal -- comments on this board, when they were having vocal issues in the early runs of Gypsy and Company. IMO it cost Peters the Tony andGaines a nomination (even though both got beyond their issues eventually).
Re Murphy, as I recall, she probably got the best individual reviews of the season;however,by the timeofthe Tony's, i did nothing she had a chance because of all the controversy about missed performances. I remember thinking the time that it was between Pinkins and Menzel, for whom I would have voted. Interestingly, I have since tired of Menzel, who I think has developed an unpleasant shrillness, where once she caused goose bumps.
Finally, re Esparza...I saw Dean Jones, Larry Kert (several times), Boyd Gaines (twice), and NPH play Bobby. i thought Esparza's performance was a distant fifth in terms of moving me. To me, Esparza may have a good voice, but he is an incredibly cold performer; suddenly singing Being Alive beautifully and with great emotion long after he had already lost me was too little too late. Do I think Pierce deserved a Tony? No. I probably would have voted for Groff, but it was not a crime that he lost since Gallagher stole that show.