Hmmmmm, I tend to pay more attention to his generals than to Davis himself.
"Did he fall prey to some of the errors that Lincoln is accused of?" I seriously doubt it, but I as I haven't studied him that much I couldn't say for sure.
"Did he violate state-rights?" Um, this guy gave his LIFE FOR state-rights! I would find it hard to believe that he violated the very thing he sacrificed so much to preserve!