In my opinion the most important thing a President does is appoint judges who serve long after they are gone. I vote for the person who will nominate the type judge that appeals to me. The debates never even talk about this issue.
I did not watch the debates, but I've been following the highlights on the news afterward. Honestly, I've been firm in my decision of who to vote for. It would take something huge to get me to change my mind against him, and even then I'd rather not vote than vote for the other guy.